- Publication venue
- Jefferson Digital Commons
- Publication date
- 01/01/1967
- Field of study
- Publication venue
- Jefferson Digital Commons
- Publication date
- 01/01/1967
- Field of study
- Publication venue
- Jefferson Digital Commons
- Publication date
- 01/09/1967
- Field of study
- Publication venue
- Jefferson Digital Commons
- Publication date
- 01/02/1968
- Field of study
- Publication venue
- 'Cambridge University Press (CUP)'
- Publication date
- 01/10/1996
- Field of study