APA (7th ed.) Citation

Porter, Brown, & Chasek. (2000). Global environmental politics (3rd ed.). Westview Press.

Chicago Style (17th ed.) Citation

Porter, Brown, and Chasek. Global Environmental Politics. 3rd ed. Colorado: Westview Press, 2000.

MLA (8th ed.) Citation

Porter, et al. Global Environmental Politics. 3rd ed. Westview Press, 2000.