Documents of the 1994 Seoul Congress : volume III : final text of the acts signed at Seoul : Berne 1995, International Bureau of the Universal Postal Union
Unión Postal Universal
Documents of the 1994 Seoul Congress : volume III : final text of the acts signed at Seoul : Berne 1995, International Bureau of the Universal Postal Union Universal Postal Union
Servicio postal
Tratado internacional
Documents of the 1994 Seoul Congress : volume III : final text of the acts signed at Seoul : Berne 1995, International Bureau of the Universal Postal Union Universal Postal Union
Servicio postal
Tratado internacional