000 00269nam a22001217a 4500
999 _c252142
_d252141
020 _a0470003588
100 _aRaven, Peter H.
245 _aEnvironment
250 _a3rd Edn.
260 _aUSA
_bHarcourt College Publishers
_c2001
300 _a612
_bill.
942 _cBK