Cita APA (7a ed.)

Yarnal, B., Polsky, C., & O'Brien, J. (2009). Sustainable communities on a sustainable planet: The human-environment regional observatory project. Cambridge University Press.

Cita Chicago Style (17a ed.)

Yarnal, Brent, Colin Polsky, y James O'Brien. Sustainable Communities on a Sustainable Planet: The Human-environment Regional Observatory Project. Cambridge: Cambridge University Press, 2009.

Cita MLA (8a ed.)

Yarnal, Brent, et al. Sustainable Communities on a Sustainable Planet: The Human-environment Regional Observatory Project. Cambridge University Press, 2009.