Safeguards in the school laboratory / 
prepared by the Laboratory Safeguard sub-committee of the Association. 
 - 9th ed. 
 - Hatfield, Herts :  Association for Science Education,  1988. 
 - 79 p. :  ill. ;  21 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0863570836 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology--Methodology
<br/><br/><label>Dewey Class. No.: </label>CA 001.42 SAF