Purkayastha,R.P. <br/><br/>
Economic plants and Microbes   Proceedings of symposia, organized by the botany 
R.P. Purkayastha 
 - New Delhi  Today & tomorrow  1990 
 - ii, 308p. 
<br/><br/><label>ISBN: </label>817013710 
<br/><br/><label>Dewey Class. No.: </label>576 Ec74