Citazione Stile APA (7a Edizione)

Porter, G., & Ganapin, D. J. (1988). Resources, population, and the Philippines' future: A case study. World Resources Institute.

Citazione stile Chigago Style (17a edizione)

Porter, Gareth, e Delfin J. Ganapin. Resources, Population, and the Philippines' Future: A Case Study. Washington, D.C: World Resources Institute, 1988.

Citatione MLA (9a ed.)

Porter, Gareth, e Delfin J. Ganapin. Resources, Population, and the Philippines' Future: A Case Study. World Resources Institute, 1988.