Philippines. Department of Tourism. (1978). The Second tourism investment priorities plan, 1979-1982. Planning Service, Department of Tourism.
Citazione stile Chigago Style (17a edizione)Philippines. Department of Tourism. The Second Tourism Investment Priorities Plan, 1979-1982. [Manila]: Planning Service, Department of Tourism, 1978.
Citatione MLA (9a ed.)Philippines. Department of Tourism. The Second Tourism Investment Priorities Plan, 1979-1982. Planning Service, Department of Tourism, 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.