Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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