Radhakrishnan, M, et al. <br/><br/>
Vellam (m) 

 -  State Institute of Languages, TVPM  1974 
 - 92 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrogen and its compounds; Inorganic chemistry
<br/><br/><label>Dewey Class. No.: </label>S 546.2  RAD-V