Towards the improvement of the efficiency and effectiveness of tourism planning and development at the regional level: planning, organisations and networks : the case of Portugal / Carlos Manuel Martins da Costa
COTA(S): 6967; 338.48(469) COS TOW
A informática na hotelaria e turismo / João Manuel Guerreiro Matoso
COTA(S): 7011; 004-6 MAT INF