000 00321 a2200109 4500
008 190117b xxu||||| |||| 00|
100 _a Ricker,W.E
245 _aMethods of estimating vital statistics of fish populations /
_c W. E. Ricker
260 _aBloomington
_bIndiana University
_c1948
300 _a290p.
942 _2ddc
_cBK
999 _c7848
_d7848