• UFOs and the alien presence

    by Michael Lindemann
    1991, 2020 Group, Visitors Investigation Project, Twenty Twenty Group

  • UFOs and how to see them

    by Jenny Randles
    1997, Barnes & Noble

  • The field guide to UFOs

    by Dennis W. Stacy
    2000, Quill

  • The Gulf Breeze sightings

    by Ed Walters
    1990, W. Morrow

  • Visitors from Within

    by Lyssa Royal, Keith Priest
    June 1992, Royal Priest Research Press

  • UFOs: unidentified flying objects

    by Howard Liss
    1968

  • In search of extraterrestrials

    by Alan Landsburg
    1977

  • Flying saucers are hostile

    by Brad Steiger
    1967

  • Flying saucers

    by Coral E. Lorenzen
    1966

  • Flying saucers, serious business

    by Frank Edwards
    1966

  • Extraterrestrial visitations from prehistoric times to the present

    by Jacques Bergier
    1974

  • The extraterrestrial encyclopedia

    by Joseph A. Angelo
    1985

  • Gods from outer space

    by Erich von Däniken
    1972

  • Alien impact

    by Michael Craft
    1996

  • Behind the flying saucers

    by Frank Scully
    1950

  • The truth behind men in black

    by Jenny Randles
    1997

  • Confirmation

    by Whitley Strieber
    1998

  • Sightings

    by Susan Michaels
    1996

  • Are we alone?

    by Robert T. Rood
    1981

  • Secrets in the fields

    by Freddy Silva
    2002

  • Extra-terrestrials among us

    by George C. Andrews
    1986

  • UFO headquarters

    by Susan Wright
    1998

  • The stones of Atlantis

    by David Zink
    1978

  • The Humanoids

    by Aimé Michel, Charles Bowen
    1969

  • Aliens among us

    by Ruth Shick Montgomery
    1985

  • Encounters

    by Edith Fiore
    1990

  • Colony--Earth

    by Mooney, Richard E.
    1974

  • Light years

    by Gary Kinder
    1987

  • Transformation

    by Whitley Strieber, Whitley and Kunetka, James Strieber
    1988

  • Cosmic top secret

    by William F. Hamilton
    1991

  • World's best "true" UFO stories

    by Jenny Randles
    1994

  • Unidentified flying objects

    by Gene Gurney
    1971

  • The Gulf Breeze sightings

    by Ed Walters
    1990

  • Scientists confront Velikovsky

    by Donald Goldsmith
    1977

  • Area 51

    by David Darlington
    1997

  • Something in This Book is True...

    by Bob Frissell
    1997

  • Pleiadian perspectives on human evolution

    by Amorah Quan Yin
    1996

  • The Pleiadian agenda

    by Barbara Hand Clow
    1995

  • The UFO conspiracy

    by Jenny Randles
    1993

  • Spaceships in Pre-History

    by Peter Kolosimo
    1976

  • Encounters with aliens

    by George W. Earley
    1968

  • Challenge to science

    by Jacques Vallee
    1966

  • The inexplicable sky

    by Arthur Constance
    1956

  • Moderner Mythus

    by Carl Gustav Jung
    1959

  • Clear intent

    by Lawrence Fawcett
    1984

  • Alien encounters

    by Campbell, Peter A.
    2000

  • Close Encounters of the Fourth Kind

    by C. D. B. Bryan
    1995

  • UFOs, JFK, and Elvis

    by Richard Belzer
    1999

  • UFO crash at Roswell

    by Kevin D. Randle
    1991

  • Abduction

    by John E. Mack
    1995

  • U.F.Os-- and their mission impossible

    by Clifford A. Wilson
    1974

  • Aliens from space

    by Donald E. Keyhoe
    1973

  • The field guide to UFOs

    by Dennis W. Stacy
    2000

  • The UFO casebook

    by Kevin D. Randle
    1989

  • The chariots still crash

    by Clifford A. Wilson
    1976

  • UFOs and IFOs

    by Gardner Soule
    1967

  • The U.F.O. report

    by Unknown authors
    1967

  • U.F.O.'s and extra-terrestrials in history

    by Yves Naud
    1978

  • Alien Contact

    by Jenny Randles
    1983

  • UFOs and the alien agenda

    by Bob Larson
    1997

  • Unidentified Flying Objects

    by Jim Collins
    1977

  • Conspiracy of silence

    by Kevin D. Randle
    1997

  • UFO--the continuing enigma

    by Reader's Digest Association
    1991

  • Ufo

    by David Ritchie
    1994

  • Nothing in this book is true, but that's exactly how things are

    by Bob Frissell
    1994

  • To Touch the Light

    by Kevin D. Randle
    1994

  • Gods of air and darkness

    by Mooney, Richard E.
    1975

  • Voyagers

    by Anna Hayes, Ashayana Deane
    1999

  • Flying saucers

    by Carl Gustav Jung
    1978

  • Roswell Incident

    by Charles Berlitz
    1980

  • Breaking the Godspell

    by Neil Freer
    1987

  • Letters to the Air Force on UFOs

    by Bill Adler Sr
    1967

  • Anatomy of a phenomenon

    by Jacques Vallee
    1965

  • Flying saucers uncensored

    by Harold Tom Wilkins
    1955

  • Sons of God return

    by Kelly L. Segraves
    1975

  • World Atlas of UFOs

    by John Spencer
    1992

  • Crash go the chariots

    by Clifford A. Wilson
    1972

  • Reaching for reality

    by Constance Clear
    1999

  • Crop circles of Wessex

    by Kent Goodman
    1996

  • The matrix

    by Valdamar Valerian
    1992

  • The sky people

    by Brinsley Le Poer Trench
    1960

  • Budd Hopkins

    ( 1931 )