Helmkamp K. George and Johnson W. Harry Jr <br/><br/>
Selected experiments in organic chemistry 
George K. Helmkamp and Harry W. Johnson, Jr 
 - 2nd 
 - USA  W. H Freeman and Company  1968 
 - vi.p.184.:ill.  Pbk 
<br/><br/><label>LC Class. No.: </label>QD 257. 5. H4  / 1968