TY  - GEN
ED  - International Symposium on River Ecology and the Impact of Man, University of Massachusetts, June 2023-23, 1971
TI  - River ecology and man: proceedings
U1  - 333.9162 
PY  - 1972///
CY  - New York
PB  - Academic Press
KW  - National resources
KW  - Water quality
KW  - Water management
KW  - Ecology
KW  - Rivers
KW  - Law economics
N1  - Includes bibliographies
ER  -