Cita APA

a. (1996). World Resousces 1996 - 97: The urban environment. New York: Oxford university Oxford.

Chicago Style Citation

a. World Resousces 1996 - 97: The Urban Environment. New York: Oxford university Oxford, 1996.

Cita MLA

a. World Resousces 1996 - 97: The Urban Environment. New York: Oxford university Oxford, 1996.

Atenció: Aquestes cites poden no estar 100% correctes.