Perry, Richard. <br/><br/>
Viral marketing :  in a week / 
by Richard, Perry and Andrew, Whitaker. 
 - 1st ed. 
 - United Kingdom :  Hodder and Stoughton,  2002. 
 - 96 p. ;  20 cm. 
<br/><br/><label>ISBN: </label>9780340849040 (pbk.) 0340849045 (pbk.) 
<br/><br/><label>Dewey Class. No.: </label>658.84  / PER