Chopra , S.L.. <br/><br/>
Analytical Agricultural Chemistry /  Textual Documents 
S.L.Chopra & J.S.Kanwar. 
 - 4th ed. / 
 - New Delhi :  Kalyani Publisher ,  1991. 
 - 488p. :  ill ;  22cm . 
<br/><br/><label>Subjects--Index Terms: </label>Chemistry Agricultural Chemistry G-Chemistry 
<br/><br/><label>Dewey Class. No.: </label>540.63  / Ch 455 An 630.54  / Ch 455 An