Graham, S.A. <br/><br/>
The spruce budworm in Minnesota  / 
by S.A. Graham and L.W. Orr 
 - Minnesota, USA  :   University of Minnesota 
 - 27 p. 
 - Minnesota technical bulletin; 42 .
<br/><br/> Encuadernado con: Orchard insects of the pacific northwest and their control / by E.J. Newcomer 
<br/><br/><label>LCCN: </label>200615 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Abeto -- plagas
<br/><br/><label>Dewey Class. No.: </label>PA-C 634 N4 1933