Cita APA (7a ed.)
Engel, S., Wunscher, T., & Wunder, S. (2007). Increasing the efficiency of conservation spending: The case of payments for environmental services in Costa Rica. Verlag Kessel.
Cita Chicago Style (17a ed.)
Engel, S., T. Wunscher, y Sven Wunder. Increasing the Efficiency of Conservation Spending: The Case of Payments for Environmental Services in Costa Rica. Verlag Kessel, 2007.
Cita MLA (9a ed.)
Engel, S., et al. Increasing the Efficiency of Conservation Spending: The Case of Payments for Environmental Services in Costa Rica. Verlag Kessel, 2007.
Precaución: Estas citas no son 100% exactas.