Nouvelle numérotation, nouvelle communication
Subtitle: le succès sur toute la ligne
By: Simone Muet, Jacques Hintzy ; [préface de Barthélémy].
Contributors: Hintzy, Jacques.; France. Direction générale des télécommunications.
Publisher: Documentation française
Published: 1986
Place of publication: Paris
Language: fre
Number of pages: 178
Subjects: Telephone -- France.; Telecommunication systems -- France.
Notes: At head of title: Direction générale des télécommunications.