- Author: John Fry Kenneth Scott Pauline Jeffree (auth.)
- Language: English
- Year: 1991
- Author: John Fry Kenneth Scott Pauline Jeffree (auth.)
- Language: English
- Year: 1990
- Author: John Fry Kenneth Scott Pauline Jeffree (auth.)
- Language: English
- Year: 1990
- Author: John Fry Kenneth Scott Pauline Jeffree (auth.)
- Language: English
- Year: 1990