Gregory, Robert H. <br/><br/>
Automatic data-procesing systems:  principles and procedures/ 
Robert H. Gregory and Richard L.Van Horn 
 - London:  Chatto and Windus,  c1960 
 - xii, 705 p.:  ill.;  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> £ 55.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Office practice--Automation<br/>Business--Data processing<br/>Electronic office machines
<br/><br/><label>Dewey Class. No.: </label>651.26