000 00377nam a2200157Ia 4500
008 180424s9999 xx 000 0 und d
084 _a621.388 016 W1:2
245 0 _aWard`s Biology
250 _a\\199000ENGGPCX
260 _aWard`s Natural Science
260 _b1990
260 _cNew York
300 _a862 p
500 _aincludes index and biblioraphy
942 _cBK
999 _c58991
_d58991