Cita APA (7a ed.)

Worldwatch Institute, Gardner, G. T., Prugh, T., Renner, M., & Mastny, L. (2016). State of the world: Can a city be sustainable? Island Press.

Cita Chicago Style (17a ed.)

Worldwatch Institute, Gary T. Gardner, Tom Prugh, Michael Renner, y Lisa Mastny. State of the World: Can a City Be Sustainable? Washington, DC: Island Press, 2016.

Cita MLA (8a ed.)

Worldwatch Institute, et al. State of the World: Can a City Be Sustainable? Island Press, 2016.