Ryan, William T <br/><br/>
Programmed learning aid for principles of marketing / 
William T Ryan ; Coordinating editor Roger H. Hermanson 
 - Homewood, Ill. :   Learning Systems Co.,   1976 
 - xi, 152 p.  :  ill. ;  25 cm 
 - Irwin PLAID series. ; .
<br/><br/>Includes Index 
<br/><br/><label>ISBN: </label>0256012903 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing --Programmed instruction. <br/>Marketing 
<br/><br/><label>Dewey Class. No.: </label>658.80077  / RYP 1976