https://openlibrary.org/books/OL6952737M.opdsApologetica elementary apologetics for pulpit and pew2011-09-13T20:49:12ZP. A. Halpinhttps://openlibrary.org/authors/OL2509530A/P._A._HalpinJ.F. WagnerNew York1905vi, 134 p."A course of fifty-two sketches for short sermons ... defending the Catholic position."enghttps://openlibrary.org/books/OL6952737Mhttps://archive.org/details/apologeticaeleme00halp646895205007570