Philippines Department of Tourism Bureau of Special Services & Philippines. (1992). Rules and regulations to govern the accreditation of travel and tour services. Bureau of Special Services, Department of Tourism.
Chicago-Zitierstil (17. Ausg.)Philippines Department of Tourism Bureau of Special Services und Philippines. Rules and Regulations to Govern the Accreditation of Travel and Tour Services. [Manila]: Bureau of Special Services, Department of Tourism, 1992.
MLA-Zitierstil (9. Ausg.)Philippines Department of Tourism Bureau of Special Services und Philippines. Rules and Regulations to Govern the Accreditation of Travel and Tour Services. Bureau of Special Services, Department of Tourism, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.