- Author: Robert T. Clark Jr.
- Language: English
- Year: 1969
- Author: Robert T. Clark
- Language: German
- Year: 2023
- Author: 布萊恩‧克拉克Robert Brian Clark
- Language: Chinese
- Year: 2016
- Author: Mark M. Lowenthal (editor) Robert M. Clark (editor)
- Language: English
- Year: 2015
- Author: Robert L. Clark (editor), P. Brett Hammond (editor)
- Language: English
- Year: 2017
- Author: Thomas Mabry Cranfill, Robert Lanier Clark
- Language: English
- Year: 2014
- Author: Robert M. Clark (editor)
- Language: English
- Year: 1961
Herder
pdf
- Author: Robert T. Clark
- Language: English
- Year: 2020
- Author: Robert P. Clark
- Language: English
- Year: 2019
