TY  - BOOK
AU  - Bellan,G.
ED  - Food and Agriculture Organization of the United Nations
ED  - United Nations Environment Programme
TI  - Manual of methods in aquatic environment research
SN  - 9251010854
U1  - 639.2 
PY  - 1981///
CY  - Rome
PB  - FAO
KW  - Fish culture
KW  - Fisheries
KW  - Research
KW  - Fishery management
KW  - Aquatic organism
N1  - Includes bibliographical references: p. 31
ER  -