
- Author: Galen S. Wagner David G. Strauss
- Language: English
- Year: 2013

- Author: Phil Zuckerman Luke W. Galen Frank L. Pasquale
- Language: English
- Year: 2016

- Author: Rudy B. Andeweg Galen A. Irwin (auth.)
- Language: English
- Year: 1993

- Author: Galen Gruman Mark Hattersley Timothy R. Butler
- Language: English
- Year: 2009

- Author: Galen Gruman Mark Hattersley Timothy R. Butler
- Language: English
- Year: 2009

- Author: Galen Strawson Galen Strawson
- Language: English
- Year: 2014

- Author: Galen Strawson
- Language: English
- Year: 2011

- Author: Galen Parker
- Language: English
- Year: 2015

- Author: Galen, R. J. Hankinson (transl.)
- Language: English
- Year: 1991