Van Dyne, George M <br/><br/>
The ecosystem concept in natural resource management 

 - New York  Academic Press  1969 
 - 383 p. 
<br/><br/><label>ISBN: </label>0127134506 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forest management
<br/><br/><label>Dewey Class. No.: </label>634.928  / ECO