Créateur
- Richard D Visconti1
- Richard J Baker1
- Richard M Hatfield1
- Richard Paul Grendahl1
- Robert A Miller1
- Robert B Caldwell1
- Robert C Hill1
- Robert C Holet1
- Robert Elliot Martin1
- Robert Grey Helfrich1
- Robert J Anderson1
- Robert J Guy1
- Robert J Walker1
- Robert L Rupp1
- Robert L Salzgeber1
- Robert Nelson Yetter1
- Robert R Wagner1
- Robert S McKie1
- Robert W Woodroofe1
- Roderick A MacLeod1