Helmkamp, George K. <br/><br/>
Selected experiments in organic chemistry /  
George K. Helmkamp and Harry William Johnson. 
 - London :  W. H. Freeman,   1968. 
 - 184 p. :  ill. ;  25 cm. 
<br/><br/> Includes index.  
<br/><br/>326  326 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Organic chemistry.
<br/><br/><label>Dewey Class. No.: </label>547 / H379s