- Author: Satinder K. Dhiman, Gary E. Roberts
- Language: English
- Author: Satinder K. Dhiman Gary E. Roberts
- Language: English
- Year: 2023
- Author: Gary Boyd Roberts, Julie Helen Otto
- Language: English
- Year: 1989
- Author: Gary L. Roberts
- Language: English
- Year: 2016
- Author: Gary L. Roberts
- Language: English
- Year: 2011
- Author: Gary E. Roberts Joanna Elizabeth Crossman
- Language: English
- Year: 2018
- Author: Gary E. Roberts (auth.)
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- Year: 2016
- Author: Gary E. Roberts (auth.)
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- Year: 2015
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- Year: 2015
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- Year: 2014