International Chemistry Directory:  1969/70- 

 - New York:  W. A. Benjamin,,  1969- 
 - v.  24 cm 
<br/><br/> Annual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry--Directories
<br/><br/><label>Dewey Class. No.: </label>540.025 INT