Print version: International Conference on Payments for Ecological Services (2009 : Ningxia, China) 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, c2010 ix, 201 pages ISBN 9789290922094