Eurodata Foundation Yearbook 1980 / Eurodata Foundation
Eurodata Foundation Voicebook : April 88 - March 89 / Eurodata Foundation
Acordo sobre transportes aéreos entre os Governos de Portugal e da Dinamarca / Direcção Geral da Aeronáutica Civil
Atlas des ports étrangers [Material cartográfico] / École Nationale des Ponts et Chaussées, Services de Cartes et Plans; Ministère des Travaux Publics
World Philatelic Exhibition : Katalog / World Philatelic Exhibition
The Danish Post and Telegraph Museum Through 50 Years : 1913-3rd November -1963 / J.C Petersen