Proceedings of a N.A.T.O. and N.S.F. advanced study institute on genetic improvement for disease and inset resistance of forest trees (Breeding pest-resistant trees) held at the Pennsylvania state university Aug.30 to 11 Sep. 1964  
/Symposium Publications Division Pergamon 
 - Paris:   Symposium Publications Division Pergamon Press,   1966 
 - ix, 505p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>Geographic pest 
<br/><br/><label>Universal Decimal Class. No.: </label>631.52:632(082.2)   / K6