Clement, H. G. (1971). Philippine tourism: Re-examined. Philippine Government and the Philippine Chamber of Tourism.
Chicago-referens (17:e uppl.)Clement, Harry G. Philippine Tourism: Re-examined. [Manila]: Philippine Government and the Philippine Chamber of Tourism, 1971.
MLA-referens (9:e uppl.)Clement, Harry G. Philippine Tourism: Re-examined. Philippine Government and the Philippine Chamber of Tourism, 1971.
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