Chaffey, Dave  & Smith, P. R. <br/><br/>
Emarketing excellence  planning and optimizing your digital marketing 

 - 4th ed 
 - Routledge, London  2013 
 - xxi, 613 
<br/><br/><label>ISBN: </label>978-0-415-53337-9 
<br/><br/><label>Dewey Class. No.: </label>658.872 Cha/Smi