Basak, Ranjan Kumar <br/><br/>
Soil testing and recommendation:  a text book / 
by Ranjan Kumar Basak 
 - 1st ed. 
 - Ludhiana:  Kalyani Publishers,  2017. 
 - 205p. 
<br/><br/><label>ISBN: </label>9789327275728 
<br/><br/><label>Dewey Class. No.: </label>J:1  / Q7