Powell, P; Timms, P L <br/><br/>
Chemistry of non-metals / 
Powell, P; Timms, P L 
 -  Chapman & Hall Ltd., London,  1974 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nonmetals; Inorganic chemistry
<br/><br/><label>Dewey Class. No.: </label>546.7 POW-C