Machine indexing:  Progress and problems 
/Third Institute on Information Storage and Retrieval, February 13-17, 1961, (American University) 
 - Washington, D.C.:  Center for Technology and Administration, School of Government and Public Administration, The American University,  1961 
 - iv, 354 p.  
<br/><br/> Third institute on information storage and retrieval, February 13-17, 1961, (American University) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information storage and retrieval systems
<br/><br/><label>Subjects--Index Terms: </label>Congresses Indexing  
<br/><br/><label>Universal Decimal Class. No.: </label>D 001.815:681.89   / K1