Urch, D. S. (David Selway). <br/><br/>
Orbitals and symmetry 
by D. S. Urch. 
 - Harmondsworth :   Penguin Books,   1970. 
 - 256 p. :    ill. ;    21 cm. 
<br/><br/>Bibliography : p. 205-207. 
<br/><br/><label>ISBN: </label>0140800980 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Molecular orbitals.<br/>Symmetry (Physics).