- Author: Robert C. Solomon Kathleen M. Higgins
- Language: English
- Year: 2017
- Author: Robert C. Solomon, Kathleen Marie Higgins
- Language: English
- Year: 2003
- Author: Robert C. Solomon, Kathleen Marie Higgins
- Language: English
- Year: 2003
- Author: Robert C. Solomon Kathleen M. Higgins
- Language: English
- Year: 2013
- Author: Robert C. Solomon Kathleen M. Higgins
- Language: English
- Year: 2013
- Author: Robert C. Solomon Kathleen M. Higgins
- Language: English
- Year: 2009