Chandra, A. K. <br/><br/>
Introductory quantum chemistry 

 - 4th ed. 
 - New Delhi  Tata McGraw-Hill  1994 
<br/><br/><label>Subjects--Index Terms: </label>Waves and quanta  Wave mechanics  Hellmann-feynman theorm 
<br/><br/><label>Dewey Class. No.: </label>541.28  / N4