Cita APA (7a ed.)

Haughton, G., & Colin, H. (1994). Sustainable cities (1st pub.). Kingsley.

Cita Chicago Style (17a ed.)

Haughton, Graham, y Hunter Colin. Sustainable Cities. 1st pub. London: Kingsley, 1994.

Cita MLA (9a ed.)

Haughton, Graham, y Hunter Colin. Sustainable Cities. 1st pub. Kingsley, 1994.