- Author: Sandra Kahn, Paul R. Ehrlich
- Language: English
- Year: 2018
- Author: James N. M. Smith (editor), Terry L. Cook (editor), Stephen I. Rothstein (editor), Scott K. Robinson (editor), Spencer G. Sealy (editor), Paul R. Ehrlich (editor)
- Language: English
- Year: 2010
- Author: Corey J. A. Bradshaw, Paul R. Ehrlich
- Language: English
- Year: 2015
- Author: Paul R. Ehrlich
- Language: English
- Year: 2023
- Author: Carol L. Boggs (editor), Ward B. Watt (editor), Paul R. Ehrlich (editor)
- Language: English
- Year: 2019
- Author: Paul R. Ehrlich, Michael Charles Tobias, John Harte
- Language: English
- Year: 2014
How Class Works
pdf
- Author: Darryl Wheye, Donald Kennedy, Paul R. Ehrlich
- Language: English
- Year: 2003
- Author: Andrew Beattie, Paul R. Ehrlich, Christine Turnbull
- Language: English
- Year: 2008
- Author: John M. Marzluff, Tony Angell, Paul R. Ehrlich
- Language: English
- Year: 2008