Free-electron theory of conjugated molecules :  a source book / 
J. R. Platt ... [et al.] 
 - New York :  John Wiley & Sons,  1964 
 - 1 v. (various pagings) :  ill. ;  24 cm. 
<br/><br/> Papers of the Chicago Group 1949-1961 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Molecular theory<br/>Electrons<br/>Hydrocarbons