Brown, G. I. <br/><br/>
A new guide to modern valency theory / 
G. I. Brown. 
 - London :  Longman,  1967. 
 - ix, 238, [4] p. :  ill. 
<br/><br/> First ed. published in 1953 under title: A simple guide to modern valency theory. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Valence--Theoretical chemistry.