Perry, James W. <br/><br/>
Machine literature searching 
by James W. Perry, Allen Kent and Madeline M. Berry 
 - Cleveland  Western Reserve University Press  1956 
 - xi, 162p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information storage and retrieval systems
<br/><br/><label>Dewey Class. No.: </label>I537 P429