- Author: Axel Klein, Marcus Day, Anthony Harriot (editors)
- Language: English
- Year: 2004
- Author: David Anderson, Susan Beckerleg, Degol Hailu, Axel Klein
- Language: English
- Year: 2007
- Author: David Anderson Susan Beckerleg Degol Hailu Axel Klein
- Language: English
- Year: 2007
- Author: George Ehrhardt, Axel Klein, Levi McLaughlin, Steven R. Reed
- Language: English
- Year: 2014
- Author: Wolfgang Kaim Axel Klein
- Language: English
- Year: 2008
- Author: Axel Klein Marcus Day Anthony Harriott
- Language: English
- Year: 2004
- Author: Axel Klein
- Language: English
- Year: 2008
- Author: Axel Klein Marcus Day Anthony Harriott (Editors)
- Language: English
- Year: 2004
- Author: Wolfgang Kaim Axel Klein
- Language: English
- Year: 2008