Plant breeding :  /a symposium 
edited by Kenneth J. Frey. 
 - Ames :  Iowa State University Press,  1966. 
 - x, 430 p. :  ill. ;  24cm. 
<br/><br/>Includes bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant-breeding.
<br/><br/><label>Dewey Class. No.: </label>631.53