Nyvall,Robert F <br/><br/>
Field Crop Diseases Handbook/ 
by Robert F.Nyvall 
 - Westport,Connecticut:  AVI Publishing Co.,  1979. 
 - xxxi,436p. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0870553364 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Field crops----Diseases and pests	<br/>Phytopathogenic microorganisms--	--Control<br/>Plant diseases	<br/>Forests and forestry	<br/>Life sciences	
<br/><br/><label>Dewey Class. No.: </label>633.089  / NYV/F