Cartmell, E. <br/><br/>
Valency and molecular structure 

 - New Delhi  English Language Book society  1977 
 - 341 p.  PB  22 cm. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Chemistry<br/>Molecular structure
<br/><br/><label>Dewey Class. No.: </label>541.224  / CAR