Katritzky, Alan R. <br/><br/>
The principles of heterocyclic chemistry/ 
by Alan R. Katritzky and J. M. Lagowski. 
 - New York:  Academic Press,  1968. 
 - xiv, 183 p.:  ill.;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heterocyclic chemistry.