- Author: Sarah J Chicone Richard A Kissel
- Language: English
- Year: 2013
- Author: Jim Robbins
- Language: English
- Year: 2017
- Author: Ronald B. Tobias
- Language: English
- Year: 2011
- Author: Keith Critchlow
- Language: English
- Year: 2012
- Author: Richard Hoath
- Language: English
- Year: 2009
- Author: Don Pinnock
- Language: English
- Year: 2016
- Author: Don Pinnock
- Language: English
- Year: 2016
- Author: National Research Council
- Language: English
- Year: 1989
- Author: Malcolm Smith
- Language: English
- Year: 2015
- Author: Robert Doherty
- Language: English
- Year: 2014