Upadhyaya, P.K. <br/><br/>
Distribution and constitution of diesel oil in agriculture 
by P.K. Upadhyaya 
 - Delhi  Mittal  1985 
 - 150p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum - India
<br/><br/><label>Dewey Class. No.: </label>Y263x54 U1