- Author: Richard L. Dayringer, James Reaves Farris
- Language: English
- Year: 2002
- Author: Richard L. Dayringer, Bridget C. Mc Keever
- Language: English
- Year: 1998
- Author: Richard L. Dayringer, H. Newton Malony
- Language: English
- Year: 2002
- Author: William M. Clements, Richard L. Dayringer, Byron Eicher
- Language: English
- Year: 1995
- Author: Richard L. Dayringer
- Language: English
- Year: 2000
- Author: Richard L Dayringer David Oler
- Language: English
- Year: 2005