Bokx, J. A. de. <br/><br/>
Viruses of potatoes and seed-potato production  / 
edited by J. A. de Bokx. 
 - Wageningen :  Centre for Agricultural Publishing and Documentation ,  1972. 
 - 233 p. :  ill. (part col.) ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Potatoes--Diseases and pests.<br/>Virus diseases of plants.
<br/><br/><label>Dewey Class. No.: </label>633.491