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020 _a0675098130
040 _aUOEL
_cDLC
_dDLC
050 0 0 _aQH541
_b.B65 1982
082 0 0 _a574.5
_219
100 1 _aBotkin, Daniel B.
245 1 0 _aEnvironmental studies :
_bthe Earth as a living planet /
_cDaniel B. Botkin and Edward A. Keller.
260 _aColumbus, [Ohio] :
_bC.E. Merrill Pub. Co.,
_cc1982.
300 _aix, 506 p. :
_bill. ;
_c29 cm.
504 _aIncludes bibliographies and index.
650 0 _aEcology.
650 0 _aPollution
_xEnvironmental aspects.
650 0 _aConservation of natural resources.
700 1 _aKeller, Edward A.,
_d1942-
906 _a7
_bcbc
_corignew
_d2
_eopcn
_f19
_gy-gencatlg
942 _2lcc
_cBK
999 _c5184
_d5184