Kekule centennial: a symposium co 

 -  O. Theodor Benfey  1965 
 - vii, 198 p: illus., ports 24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Benzene.
<br/><br/><label>Dewey Class. No.: </label>540.92  / S99P