Sidgwick, Nevil Vincent,  1873-1952 <br/><br/>
The electronic theory of valency / 
by Nevil Vincent Sidgwick 
 - Oxford :  Clarendon Press,  1927 
 - 310 p. ;  25 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Valence (Theoretical chemistry)<br/>Electrons<br/>Atomic theory