Letter prices in Europe [documento eletrónico] : up-to-date international letter price survey / ed. Alexander Rometsch-Steinmann, Regine Stöldt
Development strategies for the postal sector [documento eletrónico] : an economic perspective / Universal Postal Union; pref. Bishar A. Hussein
Annual report 2013 [documento eletrónico] / Universal Postal Union
Statistique des services postaux 2013 / Union Postale Universelle
Caracterização e diferenciação de estações e postos de correio [documento eletrónico] / Frederico Martins Nunes Pereira
130 º aniversário dos correios de Macau : livro comemorativo
CRC - Annual report 2014 : Analysys of the postal service market 2014 / Communications Regulation Comission
Annual report 2013 [documento digital] : analysis of the postal market for 2013 / Communications Regulation Commission