- Publication venue
- Publication date
- 01/01/1979
- Field of study
- Publication venue
- Publication date
- 01/01/1979
- Field of study
- Publication venue
- Publication date
- 01/01/1972
- Field of study
- Publication venue
- Publication date
- 01/01/1973
- Field of study
- Publication venue
- Publication date
- 01/01/1972
- Field of study
- Publication venue
- Publication date
- 01/01/1972
- Field of study
- Publication venue
- 'Portland Press Ltd.'
- Publication date
- Field of study