- Author: Enderton Herbert B
- Language: English
- Year: 2009
- Author: Enderton Herbert B
- Language: English
- Year: 2009
- Author: Enderton Herbert B. Trad. José Alfredo Amor Montaño
- Language: Spanish
- Year: 2004
- Author: Herbert Enderton Herbert B. Enderton
- Language: English
- Year: 2001
- Author: Herbert Enderton Herbert B. Enderton
- Language: English
- Year: 2001
- Author: Herbert Enderton Herbert B. Enderton
- Language: English
- Year: 2001
- Author: Herbert Enderton Herbert B. Enderton
- Language: English
- Year: 2001
- Author: Herbert Enderton Herbert B. Enderton
- Language: English
- Year: 2001