- Author: William Hart Hayt, Carlos Roberto Cordero Pedraza, John A. Buck
- Language: Spanish
- Year: 2012
- Author: Jr. William Hart Hayt, Jack Ellsworth Kemmerly, Steven M. Durbin
- Language: Spanish
- Year: 2012
- Author: William Hart Hayt, Carlos Roberto Cordero Pedraza, John A. Buck
- Language: Spanish
- Year: 2006
- Author: William Hart Hayt
- Language: Spanish
- Year: 2012
- Author: William Hart Hayt, John A. Buck
- Language: English
- Year: 2012
- Author: William Hart Hayt
- Language: Spanish
- Year: 2006
- Author: William Hart Hayt, Jack E Kemmerly, Steven M Durbin
- Language: English
- Year: 2011
- Author: William Hart Hayt, Jack E Kemmerly, Steven M Durbin
- Language: English
- Year: 2012
- Author: William Hart Hayt Jack Ellsworth Kemmerly Steven M. Durbin
- Language: English
- Year: 2007
- Author: William Hart Hayt Jack E. Kemmerly Steven M. Durbin
- Language: English
- Year: 2006