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.
Atenció: Aquestes cites poden no estar 100% correctes.