- Author: Fred Basolo, Ronald Johnson, Rodolfo H. Busch
- Language: Spanish, Castilian
- Year: 1980
- Author: Fred Basolo Ronald Johnson
- Language: Spanish
- Year: 1987
- Author: Fred Basolo, Ronald C. Johnson
- Language: English
- Year: 1986
- Author: Fred Basolo (auth.)
- Language: English
- Year: 2002