- Author: Hans-Georg Heinrich
- Language: English
- Year: 1992
- Author: Robert J. McIntyre
- Language: English
- Year: 1988
- Author: Richard Lawless Laila Monahan (editor)
- Language: English
- Year: 1987
- Author: Maureen Covell
- Language: English
- Year: 1987
- Author: Peter Schwab
- Language: English
- Year: 1985
- Author: Maureen Covell
- Language: English
- Year: 1987
- Author: Shahram Chubin
- Language: English
- Year: 1992