000 00348nam a2200109 4500
245 _aPollution : an international problem for fisheries
100 _aFood and Agriculture Orginization
260 _aRome
_bFood and Agricultural Orginization
_c1971
300 _aviii, 85p. :ill.; 20cm.-
490 _aWorld food probllems; no. 14
082 _a591.5
_bFAO
999 _c21663
_d21663