Dyfyniad APA

Alfonso, O. E. S., Rieza, C. H. S., & Alampay, R. B. A. The product life cycle theory and tourism in the Philippines: Case studies of Pagsanjan and Baguio City.

Dyfyniad Arddull Chicago

Alfonso, Oscar Emel S., Carmela Helene S. Rieza, and Ramon Benedicto A. Alampay. The Product Life Cycle Theory and Tourism in the Philippines: Case Studies of Pagsanjan and Baguio City.

Dyfyniad MLA

Alfonso, Oscar Emel S., et al. The Product Life Cycle Theory and Tourism in the Philippines: Case Studies of Pagsanjan and Baguio City.

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