Mitra, s K . <br/><br/>
Active Nitrogen :A New Theory /  Textual Documents 
S K Mitra. 
 - 1st / 
 - Calcutta :  Sl ,  1945. 
 - 68 p ;  23 cm. 
<br/><br/><label>Subjects--Index Terms: </label>Chemistry 
<br/><br/><label>Dewey Class. No.: </label>546.17  / M 697 Ac