Ryan, William T. <br/><br/>
A guide to marketing / 
William T. Ryan. 
 - Homewood, Ill. :  Learning Systems Co.,  c1981. 
 - x, 326 p. :  ill. ;  21 cm. 
 - Irwin publications for professional development .
<br/><br/> "An adaptation of material previously published in a programmed learning aid (PLAID) entitled Principles of marketing.  Includes index. 
<br/><br/><label>ISBN: </label>0256025762 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing.
<br/><br/><label>LC Class. No.: </label>HF5415  / .R9 
<br/><br/><label>Dewey Class. No.: </label>658.8