
- Author: Susan Walker Morris Bierbrier Paul Roberts John Taylor
- Language: Italian
- Year: 1997

- Author: Roberts John
- Language: English
- Year: 2006

- Author: Coyle Marcia, Roberts John Glover
- Language: English
- Year: 2013

- Author: Roberts John (Eds.)
- Language: English
- Year: 2010

- Author: Roberts John (Eds.)
- Language: English
- Year: 2010

- Author: David E. Beck Patricia L. Roberts John Rombeau Michael J. Stamos Steven D. Wexner
- Language: English
- Year: 2009