Subba Rao, N. S. <br/><br/>
Biofertilizers in agriculture / 
N.S. Subba Rao. 
 - New Delhi :  A.A. Balkema,  1982. 
 - ix, 186 p. :  ill. 
 - Indian edition series ;  7 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizers.<br/>Organic Fertilizers.