Breeding pest-resistant trees :  proceedings of a N.A.T.O. and N.S.F. Advanced Study Institute on genetic improvement ... held at The Pennsylvania State University, University Park, Pennsylavania, August 30 to September 11, 1964 / 
edited by H. D. Gerhold ... [et al.] 
 - Oxford :  Pergamon Press,  1966 
 - ix, 505 p. :  ill., group ports. ;  26 cm. 
<br/><br/> Organized by a program committee appointed by the Symposium Advisory Committee of the Pennsylvania State University's School of Forest Resources and held under the auspices of the North Atlantic Treaty Organization and the National Science Foundation of the United States 
<br/><br/><label>LCCN: </label>65-028544 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trees--Breeding--Congresses<br/>Trees--Disease and pest resistance--Congresses