Perry, David A. <br/><br/>
Maintaining the long-term productivity of pacific north west forest ecosystems 

 - Portland, Oregon :  Timber Press,  1989 
 - 256 p.  : ilus. 
<br/><br/> 63-77 
<br/><br/><label>LCCN: </label>7360 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bosques--Oregon.<br/>Ecología forestal.<br/>Ecosistema.
<br/><br/><label>Dewey Class. No.: </label>634.909795  / P4