EL.-SAYED H. <br/><br/>
HETEROCYCLIC CHEMISTRY. 

 - NEW YORK  MAGNUM PUBLISHING  2016 
 - xvii+224p.,30x22Cms. 
<br/><br/><label>ISBN: </label>1682501818 
<br/><br/><label>Dewey Class. No.: </label>547.59 E54