Bradford, Derek. <br/><br/>
Acidity and alkalinity / 
by Derek Bradford ; questions prepared by Derek Stebbens. 
 - London :  Heinemann Educational,  1968. 
 - vii, 38 p. :  ill. 
 - Foreground chemistry,  6 .
<br/><br/><label>ISBN: </label>0435642960 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Acids.<br/>Bases (Chemistry)<br/>Salts.