- Author: Nancy Webster, David Shirley
- Language: English
- Year: 2018
- Author: Brian Webster, David R. Beach
- Language: English
- Year: 2010
- Author: Nancy Webster David Shirley
- Language: English
- Year: 2016
- Author: Webster David L., Evans Susan Toby
- Language: English
- Year: 2010
- Author: Webster David L., Evans Susan Toby
- Language: English
- Year: 2010
- Author: Webster David L., Evans Susan Toby
- Language: English
- Year: 2010
- Author: Robert M. Silverstein Francis X. Webster David J.
- Language: English
- Year: 2015
- Author: Martin H.C. Webster David S. Soutar
- Language: English
- Author: Robert M. Silverstein Francis X. Webster David Kiemle
- Language: English
- Year: 2005