TY  - BOOK
AU  - Ricker,William Edwin
TI  - Methods for assessment of fish production in fresh waters
T2  - IBP handbook, no. 3
SN  - 0632084901
U1  - 597.052 632 
PY  - 1971///
CY  - Oxford
PB  - Blackwell Scientific Publications [for] International Biological Programme
KW  - Fish populations
N1  - On spine: Fish production in fresh waters
ER  -