000 00472nam a22001457a 4500
008 230419b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _a339.5
_bL1
100 _aOwen, Oliver S
_96803
245 _aNatural resource conservation:
_bAn ecological approach
_c/ The Macmillan Company
260 _aNew York:
_bThe Macmillan Company,
_c1971
300 _axii, 591p.
650 _aEconomics
942 _2udc
_cBK
999 _c20784
_d20784