01024nam a2200265 a 4500 73600 BD-RjUL 20211209082421.0 170604s1969 nyua b 101 0 eng (BD-RjUL)73818 DLC DLC DLC BD-RjUL eng eng 23 577 ECO 1969 The ecosystem concept in natural resource management / edited by George M. Van Dyne. New York : Academic Press, c1969. xii, 383 p. : ill. ; 24 cm. "Based on a symposium held at the annual meeting of the American Society of Range Management in Albuquerque, New Mexico on February 12-15, 1968." Includes bibliographies. Ecology Congresses. 217803 Conservation of natural resources Congresses. 217804 Ecosystem management Congresses. 217805 Van Dyne, George M., 1932- ed. 217806 American Society of Range Management. 217807 ddc BK 73600 73600 0 0 ddc 0 1 NFIC RUCL RUCL Reading 1982-07-02 Heffers 26.20 0 577 ECO 1969 2017-06-04 00:00:00 C-1 2017-06-04 BK