| A Behavioral Study Of Rural Modernization | Tract | Charles Alan Murray |
| A Bibliography of English Etymology | Tract | Anatoly Liberman |
| A Bibliography of Historical Economics to 1980 | Tract | Deirdre N. McCloskey |
| A Bibliography of Historical Economics to 1980 | Tract | George K. Hersh |
| A Biographical Dictionary of Eminent Scotsmen (Volume 1) | Tract | Robert Chambers |
| A Bridge for Passing | Tract | Pearl S. Buck |
| A Brief History of Ancient Times | Tract | James Henry Breasted |
| A Brief History of Archaeology | Tract | Brian M. Fagan |
| A Brief History of Archaeology | Tract | Nadia Durrani |
| A Brief History of Crime | Tract | Peter Hitchens |
| A Brief History of Stonehenge | Tract | Aubrey Burl |
| A Brief History of Time | Tract | Carl Sagan |
| A Brief History of Time | Tract | Stephen Hawking |
| A Brief Introduction to Arabic Numerals | Tract | Eleanor Robson |
| A calendar Of Rizaliana In The Vault Of The Philippine National Library | Tract | Ambeth Ocampo |
| A Calendar of Wisdom | Tract | Peter Sekirin |
| A Careful and Free Inquiry Into the True Nature and Tendency of the Religious Principles of the Society of Friends, Commonly Called Quakers | Tract | William Craig Brownlee |
| A Caribbean Mystery | Tract | Agatha Christie |
| A Catalogue of Southern Peculiar Galaxies and Associations: Volume 1 | Tract | Halton C. Arp |
| A Catalogue of Southern Peculiar Galaxies and Associations: Volume 1 | Tract | Barry F. Madore |
| A Catalogue of Southern Peculiar Galaxies and Associations: Volume 2 | Tract | Halton C. Arp |
| A Catalogue of Southern Peculiar Galaxies and Associations: Volume 2 | Tract | William E. Roberton |
| A Catalogue of Southern Peculiar Galaxies and Associations: Volume 2 | Tract | Barry F. Madore |
| A Catalogue of the Ancient Sculptures Preserved in the Municipal Collections of Rome | Tract | British School at Rome |
| A Catalogue of the Ancient Sculptures Preserved in the Municipal Collections of Rome | Tract | Henry Stuart Jones |
| A Catalogue of the Ancient Sculptures Preserved in the Municipal Collections of Rome | Tract | Musei Capitolini |
| A Century Of Nature | Tract | Steven Weinberg |
| A Century Of Nature | Tract | Laura Garwin |
| A Century Of Nature | Tract | Tim Lincoln |
| A Certain Star | Tract | Pearl S. Buck |
| A Change In The Cabinet | Tract | Hilaire Belloc |
| A Collection of Supplements to all Editions of Lempriere's Classical dictionary | Tract | Edmund Barker |
| A Coloring Book of Tutankhamun | Tract | Cyril Aldred |
| A Commentary on the Dresden Codex: A Maya Hieroglyphic Book | Tract | John Eric Thompson |
| A Common Language for Electrical Engineering | Tract | Eric Dollard |
| A Companion to Relativism | Tract | Steven D. Hales |
