Enciclopedia práctica de ventas/ 

 - Madrid  Grupo Cultural  2009. 
 - 320 p.  28 cm. 
<br/><br/><label>ISBN: </label>9788483691472 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias .<br/>Business and Economics/ E- Commerce/ Internet Marketing.<br/>Internet advertising<br/>Sales management<br/>Mail orders business.<br/>Selling