Plant breeding :  a symposium held at Iowa State University / 
edited by Kenneth J. Frey. 
 - Ames :  Iowa State University Press,  1966. 
 - x, 430 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>0813822807 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant breeding--Congresses.