Delos Angeles, M. S., & Rodriguez, E. (1992). Measuring benefits from natural resource conservation: The case of the Central Visayas regional projects-I. Philippine Institute for Development Studies.
Παραπομπή σε μορφή Chicago (17η εκδ.)Delos Angeles, Marian S., και Estrella Rodriguez. Measuring Benefits from Natural Resource Conservation: The Case of the Central Visayas Regional Projects-I. Makati: Philippine Institute for Development Studies, 1992.
Παραπομπή σε μορφή MLA (9th εκδ.)Delos Angeles, Marian S., και Estrella Rodriguez. Measuring Benefits from Natural Resource Conservation: The Case of the Central Visayas Regional Projects-I. Philippine Institute for Development Studies, 1992.
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