Cita APA (7a ed.)
Porter, G., & Brown, J. W. (1991). Global Environmental Politics (1. ed.). Westview Press.
Cita Chicago Style (17a ed.)
Porter, Gareth, y Janet Welsh Brown. Global Environmental Politics. 1. ed. Boulder: Westview Press, 1991.
Cita MLA (9a ed.)
Porter, Gareth, y Janet Welsh Brown. Global Environmental Politics. 1. ed. Westview Press, 1991.
Precaución: Estas citas no son 100% exactas.