- Author: R. C. Sheppard
- Language: English
- Year: 1976
- Author: R. C. Sheppard
- Language: English
- Year: 1976
- Author: R. C. Sheppard
- Language: English
- Year: 1975
- Author: R. C. Sheppard
- Language: English
- Year: 1974
- Author: G. T. Young
- Language: English
- Year: 1972
- Author: J. H. Jones
- Language: English
- Year: 1983
- Author: R. C. Sheppard
- Language: English
- Year: 1982
- Author: R.C. Sheppard
- Language: English
- Year: 1981
- Author: R. C. Sheppard
- Language: English
- Year: 1979
- Author: R. C. Sheppard
- Language: English
- Year: 1978