(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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)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. [Manila: s.n, 2005.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)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, 2005.