The potato crop  the scientific basis for improvement 
edited by P.M. Harris 
 - London  Chapman and Hall  1978 
 - xxii, 730 p.  ill., maps  25cm 
<br/><br/> 'A Halsted Press book' 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Potatoes
<br/><br/><label>Dewey Class. No.: </label>633  / .491