- Author: George C. Thornton Iii, Nigel Povah
- Language: English
- Year: 2011
- Author: George C. Thornton III, Rose A. Mueller-Hanson
- Language: English
- Year: 2003
- Author: George C. Thornton III William C. Byham and Peter Warr (Auth.)
- Language: English
- Year: 1982