Singh, R.N. <br/><br/>
Role of Blue-Green Algae in Nitrogen Economy of Indian Agriculutre 
/ by R.N. Singh 
 - New Delhi :  Indian Council of Agricultural Research,  1961 
 - 167 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Green Algae
<br/><br/><label>Dewey Class. No.: </label>579.83  / SIN-R