Παραπομπή σε μορφή APA (7η εκδ.)

Clement, H. G. (1971). Philippine tourism: Re-examined. Philippine Government and the Philippine Chamber of Tourism.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Clement, Harry G. Philippine Tourism: Re-examined. [Manila]: Philippine Government and the Philippine Chamber of Tourism, 1971.

Παραπομπή σε μορφή MLA (9th εκδ.)

Clement, Harry G. Philippine Tourism: Re-examined. Philippine Government and the Philippine Chamber of Tourism, 1971.