Katritzky, Alan R. and Lagowski, J.M. <br/><br/>
The Principles of Heterocyclic Chemistry 

 - London  Chapman and Hall Ltd  1967 
 - 183 
<br/><br/><label>ISBN: </label>41220830X 
<br/><br/><label>Publisher. No.: </label> Select Publication House 
<br/><br/><label>Subjects--Personal Names: </label> Chemistry 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry