000 00359 a2200109 4500
008 190215b xxu||||| |||| 00| 0
100 _aWurtg A, G
245 _aMethods of treating the bottom of fish ponds and their effectcs on productivity fish culture in certain European Country /
_cWurtg A, G
260 _aRome
_bFAO
_c1960
300 _a76.p
942 _2ddc
_cBK
999 _c8113
_d8113