- Author: Laurence J. Peter Raymond Hull
- Language: Italian
- Year: 2008
- Author: Laurence J. Peter Raymond Hull
- Language: English
- Year: 1969
A Peter-elv
mobi
- Author: Laurence J. Peter Raymond Hull
- Language: Hungarian
- Year: 1989
A Peter-elv
epub
- Author: Laurence J. Peter Raymond Hull
- Language: Hungarian
- Year: 1989
A Peter-elv
pdf
- Author: Laurence J. Peter Raymond Hull
- Language: Hungarian
- Year: 1989
- Author: Laurence J. Peter Raymond Hull
- Language: English
- Year: 1969
- Author: Laurence J Peter Raymond Hull Ronald Searle France-Marie Watkins
- Language: French
- Year: 1971
- Author: Laurence J. Peter Raymond Hull Robert I. Sutton
- Language: English
- Year: 2009
- Author: Laurence J. Peter Raymond Hull
- Language: German
- Year: 2001