- Author: Eugene H. Kaplan Roger Tory Peterson Susan L. Kaplan
- Language: English
- Year: 1983
- Author: Percy A. Morris R. Tucker Abbott R. Tucker Abbott Roger Tory Peterson
- Language: English
- Year: 1995
- Author: Kenneth L. Gosner Kenneth L. Gosner Roger Tory Peterson
- Language: English
- Year: 1999
- Author: Kenn Kaufman Jim P. Brock Kenn Kaufman
- Language: English
- Year: 2006
- Author: Editors of the American Heritage Dictionaries
- Language: English
- Year: 2000
The God delusion
pdf
- Author: Richard Dawkins
- Language: English
- Year: 2006
- Author: Meriwether Lewis William Clark Bernard DeVoto Stephen E. Ambrose
- Language: English
- Year: 1997
Realm of algebra
pdf
- Author: Isaac Asimov Robert Belmore
- Language: English
- Year: 1961