Sprague, Richard E. <br/><br/>
Information utilities / 
Richard E. Sprague. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  1969. 
 - 200 p. : 
<br/><br/><label>ISBN: </label>0134646932 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Online data processing.
<br/><br/><label>Dewey Class. No.: </label>004.33 Sp73 in