Critchlow, P <br/><br/>
Mastering chemistry / 
Critchlow, P 
 -  Macmillan Company, London,  1982 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry & allied sciences
<br/><br/><label>Dewey Class. No.: </label>540 CRI-M