Campismo.Caravanismo. Bungalows. : O campismo em Portugal / Orbitur
O campismo em Portugal : Bungalows / Orbitur
Camping & caravaning summary reports [[policopiado]] / GFK Marktforschung [for] Commission of the European Community
Protection of the tourist in the countries of the European Community [[policopiado]] : summary / BEUC