Singh, Lal <br/><br/>
Practical agricultural chemistry and soil science 
Lal Singh 
 - Dehra Dun  [publisher not identified]  1987 
 - v, 299 p 
<br/><br/> includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural chemistry
<br/><br/><label>Dewey Class. No.: </label>631.41 SIN