Cita APA (7a ed.)
Natural Resources Defense Council. (2001). Onearth: Environment, politics, people. Natural Resources Defense Council.
Cita Chicago Style (17a ed.)
Natural Resources Defense Council. Onearth: Environment, Politics, People. New York, NY: Natural Resources Defense Council, 2001.
Cita MLA (9a ed.)
Natural Resources Defense Council. Onearth: Environment, Politics, People. Natural Resources Defense Council, 2001.
Precaución: Estas citas no son 100% exactas.