Biology and taxonomy of nematode parasites and associates of bark beetles in the United States 

 - Washington:   US Department of Commerce,   1974 
 - 233p. 
<br/><br/> Agriculture handbook no. 446 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Handbook
<br/><br/><label>Universal Decimal Class. No.: </label>59.5.132+595.76  / L4