TY  - BOOK
AU  - Gulland, J. A. 
TI  - Fish population dynamics
SN  - 047101575x
U1  - 597.052 GUL 
PY  - 1977///.
CY  - London : 
PB  - John Wiley and Sons, 
KW  - Fish populations
KW  - Fishery resources
KW  - Fishery management
ER  -