- Author: Bruce H. Mahan
- Language: Spanish, Castilian
- Year: 1990
- Author: Bruce H. Mahan
- Language: English
- Year: 1963
- Author: Bruce H. Mahan
- Language: English
- Year: 1975
- Author: Bruce M. Mahan Rollie J. Myers
- Language: Spanish
- Year: 1987
- Author: Bruce H. Mahan
- Language: Italian
- Year: 1975
- Author: Bruce H. Mahan
- Language: Spanish
- Year: 2003