000 00286nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aRaymont (John EG)
245 0 _aPlankton and productions in the oceans
260 _bPergamom
260 _c1963
365 _b25.00
942 _cBK
999 _c201621
_d201621