Piaget in Classroom
Schwebel
The Philosophy of Scientific Experimentation
Hans Radder
The Founders' Almanac: A Practical Guide to the Notable Events, ...
Matthew Spalding
Weimar Germany: Promise and Tragedy
Eric D. Weitz
The Princeton Dictionary of Buddhism
Robert E. Buswell Jr. & Donald S. Lopez Jr.
Merriam-Webster's Dictionary and Thesaurus
Merriam-Webster
Merriam-Webster's Advanced Learner's English Dictionary