- Author: Robert E Gough (Author)
- Year: 1995
- Author: Robert E Gough
- Language: English
- Year: 1993
- Author: Robert E. Gough Cheryl Moore-Gough
- Language: English
- Year: 2011
- Author: Vladimir G. Shutak Robert E. Gough
- Language: English
- Year: 1983
- Author: Robert E. Gough Cheryl Moore-Gough
- Language: English
- Year: 2011