Pekas, Mary D. <br/><br/>
El teléfono  su uso productivo en los negocios 
Mary D. Pekas. 
 - Bogotá, Colombia  McGraw Hill Interamericana  c1992. 
 - x, 116 p.  ill. 
<br/><br/> Includes index.  Translation of : Telephone mastery, skills for business productivity. 
<br/><br/><label>ISBN: </label>0574201904 
<br/><br/><label>LCCN: </label>89010823 //r92 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone in business.<br/>Telephone selling
<br/><br/><label>Dewey Class. No.: </label>651.7/3