000 00435nam a2200145Ia 4500
008 230524s9999 xx 000 0 und d
040 _cUDSM
050 _aIRA QL615.R53
100 1 _aRickers, W. C.
_eAuthor
245 1 0 _aMethods for assessment of fish production in fresh waters
260 _aOxford:
_bBlackwell Scientific Publications,
_c1971.
300 _axiv,348p.:
_bill.;
650 1 _aFisher populations
942 _2lcc
_cBK
_n0
999 _c64177
_d64177