APA (7th ed.) Citation

Roberts, P., Ravetz, J., & George, C. (2009). Environment and the city. Routledge.

Chicago Style (17th ed.) Citation

Roberts, Peter, Joe Ravetz, and Clive George. Environment and the City. London [u.a.]: Routledge, 2009.

MLA (9th ed.) Citation

Roberts, Peter, et al. Environment and the City. Routledge, 2009.