- Author: Triffin I. Morris, Gregory D.L. Morris, Rachel E. Pollock
- Language: English
- Year: 2021
- Author: Morris Gregory L
- Language: English
- Year: 2013
- Author: Morris Gregory Lynn
- Language: English
- Year: 2012
- Author: Litchfield Ryan, Morris Gregory L
- Language: English
- Year: 2006