International coden directory 
/ The American Chemical Society  
 - Ohio:  The American Chemical Society,   1984 
 - 121p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Prolegomena
<br/><br/><label>Subjects--Index Terms: </label>Directory  
<br/><br/><label>Universal Decimal Class. No.: </label>R 003.83(057.7)   / M4