Walker, John Charles <br/><br/>
Plant Pathology 

 - 2 
 - New York  McGraw-Hill Book Company, Inc.  1957 
 - 707 
<br/><br/> 006250 
<br/><br/><label>Subjects--Personal Names: </label> MSc Microbiology 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MSc Microbiology