- Author: Richard Gough Thomas
- Language: English
- Year: 2019
- Author: Richard W. Thomas
- Language: English
- Year: 1992
- Author: Richard K. Thomas (auth.)
- Language: English
- Year: 2018
- Author: Richard F. Thomas
- Language: English
- Year: 2017
- Author: Nixon Richard Milhous, Thomas Evan
- Language: English
- Year: 2015
- Author: Karen Whalen Richard Finkel Thomas A. Panavelil
- Language: Portuguese
- Year: 2016
- Author: Richard K. Thomas (auth.)
- Language: English
- Year: 2016
- Author: Wagner Richard, Wagner Richard, Grey Thomas S
- Language: English
- Year: 2009
- Author: Wagner Richard, Wagner Richard, Grey Thomas S
- Language: English
- Year: 2009
- Author: Horace Richard F. Thomas
- Language: English
- Year: 2011