Cita APA (7th ed.)

Marcotullio, P. J., & McGranahan, G. (2007). Scaling urban environmental challenges: From local to global and back. Earthscan.

Cita Chicago (17th ed.)

Marcotullio, Peter J., i Gordon McGranahan. Scaling Urban Environmental Challenges: From Local to Global and Back. London: Earthscan, 2007.

Cita MLA (8th ed.)

Marcotullio, Peter J., i Gordon McGranahan. Scaling Urban Environmental Challenges: From Local to Global and Back. Earthscan, 2007.