1. | A report on growth and profitability in the superjet age the 3rd two-way transatlantic travel congress / European Travel CommissionData Publicação: 1969 Col.autor: European Travel Commission | ||
2. | Beira-Douro região turística / J. Pina Manique e AlbuquerqueAutor: Albuquerque, J. Pina Manique e Data Publicação: 1969 |