Struble, George R.,  1904- <br/><br/>
The fir engraver beetle :  a serious enemy of white fir and red fir / 
by G.R. Struble. 
 - Washington, D.C. :  U.S. Dept. of Agriculture,  1937. 
 - 16 p., 4 p. of plates :  ill., charts ;  23 cm. 
 - Circular / United States Department of Agriculture ;  no. 419 .
 - Circular (United States. Department of Agriculture) ;  no. 419. .
<br/><br/> Caption title.  Contribution from Bureau of Entomology and Plant Quarantine. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>agr37000048  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fir--Diseases and pests.<br/>Abies magnifica--Diseases and pests.<br/>Abies concolor--Diseases and pests.
<br/><br/><label>LC Class. No.: </label>SB945.F53  / S7 
<br/><br/><label>National Agricultural Library Call No.: </label>1  / Ag84C no.419