(2005). PES, sustainable financing for conservation and development: Proceedings from the National Conference-Workshop on Payments for Environmental Services : direct incentives for biodiversity conservation and poverty alleviation, Manila, March 1-2, 2005. s.n.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPES, Sustainable Financing for Conservation and Development: Proceedings from the National Conference-Workshop on Payments for Environmental Services : Direct Incentives for Biodiversity Conservation and Poverty Alleviation, Manila, March 1-2, 2005. [Manila: s.n, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPES, Sustainable Financing for Conservation and Development: Proceedings from the National Conference-Workshop on Payments for Environmental Services : Direct Incentives for Biodiversity Conservation and Poverty Alleviation, Manila, March 1-2, 2005. s.n, 2005.