- Author: Robert M. Maxon Thomas P. Ofcansky
- Language: English
- Year: 2014
- Author: Thomas P. Ofcansky
- Language: English
- Year: 1995
- Author: Robert M Maxon, Thomas P Ofcansky
- Language: English
- Year: 2000
- Author: David H. Shinn, Thomas P. Ofcansky
- Language: English
- Year: 2013
- Author: Thomas P. Ofcansky
- Language: English
- Year: 1997
- Author: Robert M. Maxon Thomas P. Ofcansky
- Language: English
- Year: 2000
- Author: Thomas P. Ofcansky Laverle Berry
- Language: English
- Year: 2004