000 00312nam a22001097a 4500
008 150902b xxu||||| |||| 00| 0 eng d
020 _a0030143292
082 _a363.7 RAV
100 _aRAVEN, PETER H
_bLINDA,R BERG,GEORGE,B JOHNSON
245 _aENVIRONMENT
260 _aNEW YORK
_bSAUNDERS COLLEGE PUBLISHING
_c1993
999 _c1939
_d1939