Nyvall, Robert F. <br/><br/>
Field crop diseases handbook / 
Robert F. Nyvall. 
 - Westport :  AVI Pub. Co,  1979. 
 - xxxi, 436 p. :  ill. ;  27 cm. 
 - AVI sourcebook and handbook series .
<br/><br/>Includes bibliographies and index. 
<br/><br/> Closed. 
<br/><br/><label>ISBN: </label>0870553364 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Field crops--Diseases and pests.<br/>Plant diseases.<br/>Micro-organizations, phytopathogenic--Control.