Proceedings 

 - Berkeley, Cal. :  Pacific Southwest Forest and Range Experiment Station,  1979 
 - 752 p.  : ilus. ; mapas 
 - Genreral technical report  ; PSW-35 .
 - Genreral technical report  ; PSW-35 .
<br/><br/><label>LCCN: </label>25637 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Recursos naturales--Conservación.<br/>Vida al aire libre.
<br/><br/><label>Dewey Class. No.: </label>333.72  / C64