TY  - BOOK
AU  - Gulland, J. A.
TI  - Manual of methods for fish stock assessment
T2  - FAO manuals in fisheies science
U1  - 338.3720184 
PY  - 1969///
CY  - Rome
PB  - Food and Agriculture Organization of the United Nations
N1  - Contents.p.1. Fish population analysis; Includes bibliography
ER  -