R.S. Singh,  . <br/><br/>
Introduction to principles of plant pathology /  
by R.S. Singh. 
 - 3rd ed /  
 - New Delhi :   Oxford & IBH Publishing Co. ,   1950 
 - 534p,x :  
<br/><br/><label>ISBN: </label>81-204-0178-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant Pathology
<br/><br/><label>Dewey Class. No.: </label>I:4  / M4;2