Wendel, Thomas M. <br/><br/>
Introduction to data processing and COBOL / 
by Thomas M. Wendel and William H. Williams. 
 - New York :  McGraw-Hill,  1969. 
 - ix, 462 p. :  illus. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COBOL (Computer program language).<br/>Business--Data processing.