- Author: David Darwin Charles W. Dolan Arthur H Nilson
- Language: English
- Year: 2015
- Author: Arthur H.Nilson
- Language: Spanish
- Year: 1990
- Author: Arthur H Nilson, David Darwin, Charles W Dolan
- Language: English
- Year: 2004
- Author: Arthur H. Nilson
- Language: Spanish
- Year: 2000
- Author: Arthur H. Nilson
- Language: English
- Year: 1987
- Author: Arthur H Nilson
- Language: English
- Year: 2003