Dunstan, Sonia. <br/><br/>
Principles of chemistry / 
Sonia Dunstan . 
 - London :  D. Van Nostrand ,  1968 . 
 - 493 p.   illus.   24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry
<br/><br/><label>LC Class. No.: </label>QD31