Davis, Martyn P.  1929- <br/><br/>
The effective use of advertising media :  a practical guide / 
by Martyn P. Davis 
 - London :  Business Books,  1981 
 - xxiv, 322 p. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0091429706 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Advertising media planning