- Author: Robert Paarlberg, Norman E. Borlaug, Jimmy Carter
- Language: English
- Year: 2009
- Author: Robert A. Norman
- Language: English
- Year: 2014
- Author: Robert Seltzer Norman S. Cohen
- Language: English
- Year: 1995
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- Language: English
- Year: 2022
- Author: Robert A. Norman
- Language: English
- Year: 2013
- Author: Robert Rosenbaum, Norman Fischer
- Language: English
- Year: 2022
- Author: A.R. Davis, Robert Kotewall, Norman L. Smith
- Language: English
- Year: 1962
- Author: A.R. Davis, Robert Kotewall, Norman L. Smith
- Language: English
- Year: 1962
- Author: Robert A. Norman Justin Endo (auth.)
- Language: English
- Year: 2013
- Author: Robert A. Norman
- Language: English
- Year: 2016
