Historia de la telefonia en Mexico 1878-1991 

 - Mexico  : Telefonos de Mexico  , c1991. 
 - 221p. il. 
<br/><br/><label>ISBN: </label>068-6745-00-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telefonos---Historia---Mexico
<br/><br/><label>Dewey Class. No.: </label>384.60972 TEL