Cita APA (7a ed.)

Thomas, R., Collins, J., & Mills, D. R. (1973). The spread of cities. Open University Press.

Cita Chicago Style (17a ed.)

Thomas, Ray, John Collins, y Dennis R. Mills. The Spread of Cities. Milton Keynes: Open University Press, 1973.

Cita MLA (8a ed.)

Thomas, Ray, et al. The Spread of Cities. Open University Press, 1973.