Textbook of Soil Sciences/ 
Biswas,T.D. 
 - 2nd edition 
 - New Delhi:  McGraw-Hill Inc.,US,  1994. 
 - 433 
<br/><br/><label>ISBN: </label>0074620436 
<br/><br/><label>Dewey Class. No.: </label>631.4  / BIS/S