Cita APA (7th ed.)

Hardoy, J. (1992). Environmental problems in third world cities. Earthscan.

Cita Chicago (17th ed.)

Hardoy, Jorge. Environmental Problems in Third World Cities. London: Earthscan, 1992.

Cita MLA (9th ed.)

Hardoy, Jorge. Environmental Problems in Third World Cities. Earthscan, 1992.