Smith, Kenneth Manley,  1892- <br/><br/>
Plant viruses 
Kenneth M. Smith 
 - 6th ed. 
 - London  Chapman and Hall  1977 
 - ix, 241 p.  20 p. of plates, ill.  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant viruses<br/>Virus diseases of plants
<br/><br/><label>Dewey Class. No.: </label>632.8