Hanna, Melvin W, <br/><br/>
Quantum mechanics in chemistry / 
Melvin W. Hanna. 
 - 2nd ed. 
 - New York :  W. A. Benjamin,  1969. 
 - xv, 260 p. :  ill. ;  23 cm. 
<br/><br/>p. 251-254. 
<br/><br/><label>ISBN: </label>805337024h 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Quantum chemistry