Northwest plant names and symbols for ecosystem inventory and analysis 

 - 4th ed. 
 - Washington, D.C. :  United States Government Printing Office,  1976 
 - 263 p. ;  20 cm. 
 - USDA forest service general technical report;  PNW-46 .
<br/><br/> Forest service 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany<br/>Angiosperms
<br/><br/><label>Dewey Class. No.: </label>580