Hedlin, Alan F. <br/><br/>
Conce and Seed insects of north American conifers/ 
Alan F. Hedlin; Harry O. Yates 
 - 122p/27cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ENTOMOLOGIA FORESTAL<br/>PLAGAS FORESTALES
<br/><br/><label>Dewey Class. No.: </label>595.7091̐52  / HED 1980