- Author: Harold G. Koenig, Russ Harris
- Language: English
- Year: 2002
- Author: Harold G Koenig
- Language: English
- Year: 1997
- Author: David H. Rosmarin (editor) Harold G. Koenig (editor)
- Language: English
- Year: 2020
- Author: Harold G. Koenig
- Language: English
- Year: 2018
- Author: Philippe Huguelet, Harold G Koenig
- Language: English
- Year: 2009
- Author: Harold G. Koenig Saad Al Shohaib (auth.)
- Language: English
- Year: 2014
- Author: M.D. Harold G Koenig
- Language: English
- Year: 2005
- Author: Verna Benner Carson Harold G. Koenig
- Language: English
- Year: 2008