- Author: Robert C. O'Brien
- Language: English
- Year: 2016
- Author: Robert T. O'Brien
- Language: English
- Year: 2001
- Author: Robert M O'Brien
- Language: English
- Year: 2014
- Author: David A. Dunnette and Robert J. O'Brien (Eds.)
- Language: English
- Year: 1992
- Author: Robert L. O'Brien
- Language: English
- Year: 1997