State of the library art  
/ Graduate School of Library Science 
 - N.J.:   Graduate School of Library Science,   1961 
 - vii, 373p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library Science
<br/><br/><label>Subjects--Index Terms: </label>Notched cards Punched cards 
<br/><br/><label>Universal Decimal Class. No.: </label>D 02   / K0.4