https://openlibrary.org/books/OL3789525M.opdsThe basic handbook encyclopedia of the basic computer language2020-10-21T14:00:03ZDavid A. Lienhttps://openlibrary.org/authors/OL957140A/David_A._LienCompusoft Pub.San Diego, Calif1981480 p. :2nd ed.Pages 472-479 blank for Notes.enghttps://openlibrary.org/books/OL3789525Mhttps://archive.org/details/Basic_Handbook_2nd_Edition_1981_CompuSoft_Publishingurn:ISBN:093276005881067479