Philippines Department of Tourism Bureau of Special Services & Philippines. (1992). Rules and regulations governing the accreditation of tourism-related establishments. Bureau of Special Services, Department of Tourism.
Citazione stile Chigago Style (17a edizione)Philippines Department of Tourism Bureau of Special Services e Philippines. Rules and Regulations Governing the Accreditation of Tourism-related Establishments. [Manila]: Bureau of Special Services, Department of Tourism, 1992.
Citatione MLA (9a ed.)Philippines Department of Tourism Bureau of Special Services e Philippines. Rules and Regulations Governing the Accreditation of Tourism-related Establishments. Bureau of Special Services, Department of Tourism, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.