The potato crop :  the scientific basis for improvement / 
edited by P.M. Harris. 
 - London :  Chapman & Hall,  1978. 
 - xxii,730 pages :  illustrations (maps) ;  25 cm. 
<br/><br/> 'A Halsted Press book' 
<br/><br/>Bibl. - Index 
<br/><br/><label>ISBN: </label>0412128306 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Potatoes.