Purkayastha , B C Das <br/><br/>
Modern Concepts In Chemistry  
by B C Das Purkayastha and B.B.Chakraborty  
 - Guwahati   Live Publishing House  1990 
 - 76p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry
<br/><br/><label>Dewey Class. No.: </label>540  / PUR