Nomenclature des voies de telecommunication utilisees pour la tranmission des telegrammes = List of telecommunication channels used for the transmission of telegrams = Nomenclator de las vias de telecommunicacion empleadas para la tranmision de telegramas / 
Union Internationale des Telecommunications = International Telecommunication Union = Union Internacional de Telecomunicaciones. 
 - 4e edition = 4th edition = 4.a edicion. 
 - Geneve :  Union Internationale des Telecommunications,  1982. 
 - 133 p. 
<br/><br/><br/>In French, English, and Spanish. 
<br/><br/><label>ISBN: </label>9271030494 
<br/><br/><label>LCCN: </label>89080305 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Multichannel communication--Nomenclature.<br/>Telecommunication systems--Nomenclature.<br/>Data transmission systems--Nomenclature.