Mandahar  c. l. <br/><br/>
Introduction to plant viruses 

 - Ram nagar, new delhi  S. chand & compan ltd  1978 
<br/><br/><label>LC Class. No.: </label>279.2/MAN  / 4 
<br/><br/><label>Dewey Class. No.: </label>279.2/MAN  / 4