Cita APA (7th ed.)

Pennington, K. L., & Cech, T. V. (2010). Introduction to water resources and environmental issues. Cambridge University Press.

Cita Chicago (17th ed.)

Pennington, Karrie Lynn, i Thomas V. Cech. Introduction to Water Resources and Environmental Issues. Cambridge, United Kingdom: Cambridge University Press, 2010.

Cita MLA (9th ed.)

Pennington, Karrie Lynn, i Thomas V. Cech. Introduction to Water Resources and Environmental Issues. Cambridge University Press, 2010.