TY  - BOOK
AU  - Forbes,S.T.
AU  - Nakken,Odd
ED  - Food and Agriculture Organization of the United Nations.
TI  - Manual of methods for fisheries resource survey and appraisal
U1  - 639.2 
PY  - 1972///
CY  - Rome
PB  - FAO
KW  - Fishery resources
KW  - Exploratory fishing
KW  - Aquaculture
N1  - Includes bibliography: p. 134-138; Part. 1. Survey and charting of fisheries resources, edited by D. L. Alverson.--pt. 2. The use of acoustic instruments for fish detection and abundance estimation
ER  -