Cita APA (7th ed.)

Porteous, J. D. (1996). Environmental aesthetics: Ideas, politics and planning. [s.n.].

Cita Chicago (17th ed.)

Porteous, J. Douglas. Environmental Aesthetics: Ideas, Politics and Planning. Routledge: [s.n.], 1996.

Cita MLA (9th ed.)

Porteous, J. Douglas. Environmental Aesthetics: Ideas, Politics and Planning. [s.n.], 1996.