00860nam a2200253 4500 vtls000017195 MTX 990712c1990 usaa 00 eng 002390111x 201311071629 VLOAD 201311071559 VLOAD 201008281241 VLOAD 201008272109 VLOAD 200206121356 load S938 O87 N5 1990 Owen, Oliver S. 28062 Natural Resource Conservation : An Ecological Approach / Oliver S. Owen 5th ed New York : Macmillan, 1990 538 p : ill Environmental protection United States. 28063 Environmental protection. 2777 Conversation of natural resources. 28064 Ecology. 12808 Chiras, Daniel D, jt. auth. 28065 GBE 12608 12608 2018-03-12 00:00:00 S938 O87 N5 1990 1000043129 1 2018-03-12 GBE 0 0 0 CGB 0 SP SP GEN 2018-03-12 0.00