Subbiah, B.V. <br/><br/>
Isotopes in soil plant nutrition 
B.V. Subbiah, S.K. Das and M.S. Sachdev. 
 - New Delhi  ICAR  1993 
 - 138p., 23cm. 
<br/><br/><label>Dewey Class. No.: </label>631.4954  / S99I