McDonald, Colin,  1932- <br/><br/>
Advertising reach and frequency :  maximizing advertising results through effective frequency / 
Colin McDonald. 
 - 2nd ed. 
 - Lincolnwood, Ill. :  NTC Business Books,  c1996. 
 - xii, 157 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0844235067 9780844235066 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Advertising--Effective frequency.