Cartmell, E. <br/><br/>
Valency and molecular structure 
[by] E. Cartmell and G.W.A. Fowles. 
 - 3rd ed. 
 - New York,  Academic Press,  1956. 
 - 294p.  illus.  22 cm. 
<br/><br/><label>Subjects--Index Terms: </label>Molecules  Valence (Theoretical chemistry) 
<br/><br/><label>Dewey Class. No.: </label>541.39  / CAR