
- Author: Peter Shepherd Gregory Unsworth-Mitchell
- Language: Arabic

- Author: Peter Bullock Gregory
- Language: English
- Year: 1991

- Author: David Ingram Daphne Vince Prue Peter J. Gregory
- Language: English
- Year: 2002

- Author: Peter H. Gregory
- Language: English
- Year: 2009

- Author: Robert Carlson Stephen A. Fulling and Peter Kuchment Gregory Berkolaiko
- Language: English
- Year: 2006

- Author: Peter Howell Gregory Kozyreff John Ockendon
- Language: English
- Year: 2009

- Author: Peter H. Gregory Mike Simon
- Language: English
- Year: 2005

- Author: Peter H. Gregory Mike Simon
- Language: English
- Year: 2005

- Author: Peter H. Gregory
- Language: English
- Year: 2004

- Author: Peter Howell Gregory Kozyreff John Ockendon
- Language: English
- Year: 2009