Speakman, J. Clare,  1907- <br/><br/>
An introduction to the electronic theory of valency/ 
J. Clare Speakman. 
 - London:  E. Arnold,  1955. 
 - 180 p.   illus.  19 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Valence Theoretical chemistry
<br/><br/><label>LC Class. No.: </label>QD469