Religion
Encyclopedia of Religion, by Vergilius Ferm.
A Concise History of Christianity, by R. Dean Peterson.
Christianity: An Introduction, by Denise Lardner & John Tully Carmody.
Children of Abraham: Judaism, Christianity, Islam, by F.E. Peters.
The Oxford Companion to the Bible, by Michael D. Metzger and Michael D. Coogan.
Don't Know Much About the Bible, by Kenneth C. Davis.
A New Dictionary of Religions, edited by John R. Hinnells.
The Encyclopedia of American Religious History, edited by John Bowker.
Merriam-Webster's Encyclopedia of World Religions, edited by Wendy Doniger.
The Encyclopedia of American Religious History, edited by Edward L. Queen II, et al.
The HarperCollins Encyclopedia of Catholicism, edited by Richard P. McBrien, et al.
The Chronicle of the Popes, P.G. Maxwell-Stuart.
Logic & Philosophy
A Concise Introduction to Logic, by Patrick J. Hurley. Published by Wadsworth.
Introduction to Logic, by Irving M. Copi and Carl Cohen.
Elements of Logic, by Stephen F. Barker. Published by McGraw-Hill.
The Encyclopedia of Philosophy, edited by Paul Edwards.
The Encyclopedia of Unbelief, edited by Gordon Stein.
Social Sciences
The Blackwell Dictionary of Sociology, Allan G. Johnson.
International Encyclopedia of the Social Sciences, edited by David L. Sills.
The Encyclopaedia of the Social Sciences, edited by Edwin R. A. Seligman.
Law and Politics
-->The Oxford Companion to the Supreme Court, edited by Kermit L. Hall.
Encyclopedia of the American Constitution, edited by Leonard W. Levy, et al.
