- Author: John T. Irwin
- Language: English
- Year: 2017
- Author: John T. Irwin
- Language: English
- Year: 1980
- Author: John T. Irwin
- Language: English
- Year: 1994
- Author: John T. Irwin
- Language: English
- Year: 2016
- Author: John T. Irwin
- Language: English
- Year: 2011
- Author: John T. Irwin
- Language: English
- Year: 2014
- Author: John B. Irwin
- Language: English
- Year: 1997
- Author: John T. Irwin
- Language: English
- Year: 2008