Cita APA (7th ed.)
Hill, M. K. (2010). Understanding environmental pollution (3rd ed.). Cambridge University Press.
Cita Chicago (17th ed.)
Hill, Marquita K. Understanding Environmental Pollution. 3rd ed. New York: Cambridge University Press, 2010.
Cita MLA (9th ed.)
Hill, Marquita K. Understanding Environmental Pollution. 3rd ed. Cambridge University Press, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.