Batty, C. D. <br/><br/>
An introduction to the nineteenth edition of the Dewey decimal classification / 
C. D. Batty 
 - London :  C. Bingley,  1981 
 - 1v.(various pagings) ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0851573037‬  PND4.40 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Dewey decimal--Programmed instruction
<br/><br/><label>Dewey Class. No.: </label>025.43