Batty, C.D.. <br/><br/>
Introduction to Colon Classification /  

 - 1st ed /  
 - London W11 :   Clive Bingley Ltd. ,   1968 
 - p90 :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library Science
<br/><br/><label>Dewey Class. No.: </label>2:12  / K6