Cita APA (7th ed.)

Harris, N. (1992). Cities in the 1990s: The challenge for developing countries. St. Martin's Press.

Cita Chicago (17th ed.)

Harris, Nigel. Cities in the 1990s: The Challenge for Developing Countries. London: St. Martin's Press, 1992.

Cita MLA (9th ed.)

Harris, Nigel. Cities in the 1990s: The Challenge for Developing Countries. St. Martin's Press, 1992.