Sehgal, R L <br/><br/>
Handbook of colon clasification 

 - 1st 
 - New Delhi  Ess Ess  1993 
 - xii,285p p. 
<br/><br/><label>ISBN: </label>81-7000-161-7 
<br/><br/><label>Subjects--Index Terms: </label>Classification, Colon