Batty, C. D. <br/><br/>
An introduction to the Dewey decimal classification / 
C. D. Batty. 
 - London :  Clive Bingley,  1965. 
 - 94 p. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Dewey decimal--Programmed instruction.