Blum, Jaime,  1923- <br/><br/>
Keypunch, keytape and keydisc / 
J. Blum and Esther L. Blum 
 - New York :  Gordon and Breach,  c1975 
 - x, 198 p. :  ill. ;  28 cm. 
<br/><br/> Glossary : p. 191-196P  Includes index 
<br/><br/><label>ISBN: </label>0677039506 :  PND 6.30 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing--Handbooks, manuals, etc.<br/>Punched card systems--Handbooks, manuals, etc.<br/>Data tapes--Handbooks, manuals, etc.
<br/><br/><label>Dewey Class. No.: </label>651.26