Philippines Bureau of Tourism Services & Philippines. (1979). Rules and regulations governing the business of travel and tour agencies, travel representatives and tour guides. The Bureau.
Citace podle Chicago (17th ed.)Philippines Bureau of Tourism Services a Philippines. Rules and Regulations Governing the Business of Travel and Tour Agencies, Travel Representatives and Tour Guides. Manila: The Bureau, 1979.
Citace podle MLA (9th ed.)Philippines Bureau of Tourism Services a Philippines. Rules and Regulations Governing the Business of Travel and Tour Agencies, Travel Representatives and Tour Guides. The Bureau, 1979.
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