Millennium Ecosystem Assessment (Program). Condition and Trends Working Group, Hassan, R. M., Scholes, R. J., & Ash, N. (2009). Ecosystems and human well-being: Current state and trends : findings of the Condition and Trends Working Group of the Millennium Ecosystem Assessment. Island Press.
Cita Chicago Style (17a ed.)Millennium Ecosystem Assessment (Program). Condition and Trends Working Group, Rashid M. Hassan, R. J. Scholes, y Neville Ash. Ecosystems and Human Well-being: Current State and Trends : Findings of the Condition and Trends Working Group of the Millennium Ecosystem Assessment. Washington, DC: Island Press, 2009.
Cita MLA (8a ed.)Millennium Ecosystem Assessment (Program). Condition and Trends Working Group, et al. Ecosystems and Human Well-being: Current State and Trends : Findings of the Condition and Trends Working Group of the Millennium Ecosystem Assessment. Island Press, 2009.