Raychaudhuri,  S.P. <br/><br/>
Problems of fertiliser use and crop production. 
by  S.P. Raychaudhuri. 
 - New Delhi.  Economic and Scientific Research Foundation .  1975 
 - xi,103p. ;   24cm. 
<br/><br/><label>Dewey Class. No.: </label>338.160954  /  RAY