- Author: Robert F. Griffin, J. Robert Baker, Dennis Wm. Moran
- Language: English
- Year: 2016
- Author: Robert J. Griffin, Terry Griffin
- Language: English
- Year: 2003
- Author: Robert S. Griffin
- Language: English
- Year: 2001
- Author: Robert J. Griffin (eds.)
- Language: English
- Year: 2003
- Author: Robert S. Griffin
- Language: English
- Year: 2001
- Author: Robert H Griffin, Ann H Shurgin
- Language: English
- Year: 2000
- Author: Robert H Griffin, Ann H Shurgin
- Language: English
- Year: 2000