APA (7th ed.) Citation

Hubbard, P., Kitchin, R., & Valentine, G. (2004). Key thinkers on space and place. Sage.

Chicago Style (17th ed.) Citation

Hubbard, Phil, Rob Kitchin, and Gill Valentine. Key Thinkers on Space and Place. London: Sage, 2004.

MLA (9th ed.) Citation

Hubbard, Phil, et al. Key Thinkers on Space and Place. Sage, 2004.