International Conference on Payments for Ecological Services Ningxia, China, Asian Development Bank, National Development and Reform Commission, & Zhang, Q. (2010). Payments for ecological services and eco-compensation: Practices and innovations in the People's Republic of China : proceedings from the International Conference on Payments for Ecological Services, Ningxia Hui Autonomous Region, People's Republic of China, 6-7 September 2009. Asian Development Bank.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Conference on Payments for Ecological Services Ningxia, China, Asian Development Bank, National Development and Reform Commission, و Qingfeng Zhang. Payments for Ecological Services and Eco-compensation: Practices and Innovations in the People's Republic of China : Proceedings from the International Conference on Payments for Ecological Services, Ningxia Hui Autonomous Region, People's Republic of China, 6-7 September 2009. Metro Manila, Philippines: Asian Development Bank, 2010.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Conference on Payments for Ecological Services Ningxia, China, et al. Payments for Ecological Services and Eco-compensation: Practices and Innovations in the People's Republic of China : Proceedings from the International Conference on Payments for Ecological Services, Ningxia Hui Autonomous Region, People's Republic of China, 6-7 September 2009. Asian Development Bank, 2010.