The Ecosystem concept in natural resource management, 
edited by George M. Van Dyne. 
 - New York,  Academic Press,  1969. 
 - xii, 383 p.  illus.  24 cm. 
<br/><br/> "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." 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0127134506 
<br/><br/><label>LCCN: </label>72086367 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation of natural resources--Congresses.<br/>Ecology--Congresses.<br/>Ecosystem management--Congresses.
<br/><br/><label>LC Class. No.: </label>QH540  / .E34