- Author: Duncan L. Hughes James Gore Michele P. Brossett John R. Olson
- Language: English
- Year: 2009
- Author: Barbara Hughes
- Language: English
- Year: 2006
- Author: Peter Burckhardt Bess Dawson-Hughes Robert P. Heaney
- Language: English
- Year: 2004
- Author: W. Michael Scheld James M. Hughes Barbara E. Murray
- Language: English
- Year: 2004
- Author: Roy Drucker Graham Hughes
- Language: English
- Year: 2002
- Author: Joe Hughes
- Language: English
- Year: 2009
- Author: Matthew J. Kohn John F. Rakovan John M. Hughes
- Language: English
- Year: 2002