Sylvin, Morris. , <br/><br/>
Herocyclic Compounds 
By Morris Sylvin 
 - 1st Ed. 
 - Delhi  IVY Publishing House  2006 
 - 1 - 93p. 
<br/><br/><label>ISBN: </label>81-7890-142-0 
<br/><br/><label>Dewey Class. No.: </label>E8  / P6