- Author: Greg Holden, Scott Willis, Scott Wills
- Language: English
- Year: 2001
- Author: Greg Holden
- Language: English
- Year: 2011
- Author: Peter Economy Paul, Sarah Edwards, Lita Epstein, Alex Hiam, Greg Holden, Peter Jaret, Jim Muehlhausen JD, Bob Nelson PhD, Steven Peterson, Barbara Findlay Schenck, Michael Seid, Dave Thomas, John A. Tracy, Tage C. Tracy
- Language: English
- Year: 2015
- Author: Grosberg Michael, Bloom Greg, Holden Trent, Kaminski Anna, Stiles Paul
- Language: English
- Year: 2015
- Author: Greg Holden
- Language: English
- Year: 2010
- Author: Greg Holden (auth.)
- Language: English
- Year: 2004
- Author: Anthony Borelli Greg Holden
- Language: English
- Year: 2007
- Author: Greg Holden
- Language: English
- Year: 2013
- Author: Greg Holden
- Language: English
- Year: 2005
- Author: Greg Holden Lawrence C. Miller
- Language: English
- Year: 2011