Johnstone, A.H. <br/><br/>
 teacher's guide 
A.H. Johnstone and T.I. Morrison 
 - London  Heinemann Educational Books  1967 
 - v. : ill. ; 18 cm. 
<br/><br/><label>ISBN: </label>0435644920 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry