- Publication venue
- [Washington, D.C.]
- Publication date
- 01/01/1980
- Field of study
- Publication venue
- AAAS and Westview Press
- Publication date
- 01/01/1987
- Field of study
xxiii, 211 p. : il. ; 18 cm
- Publication venue
- AAAS and Westview Press
- Publication date
- 01/01/1987
- Field of study
xxiii, 211 p. : il. ; 18 cm