- Author: James Volo, Dorothy Volo
- Language: English
- Year: 2005
- Author: George Hart, Scott Slovic, Scott Slovic
- Language: English
- Year: 2004
- Author: David Green, Alastair Owens, Alastair Owens
- Language: English
- Year: 2004
- Author: Charles Peek, Robert Hamblin, Robert Hamblin
- Language: English
- Year: 2004
- Author: Randall Capps, Paul Clermont
- Language: English
- Year: 2004