Cita APA

Gregory, D., Martin, R., & Smith, G. (1994). Human geography: Society, space, and social science. Macmillan.

Citación estilo Chicago

Gregory, Derek, Ron Martin, and Graham Smith. Human Geography: Society, Space, and Social Science. London: Macmillan, 1994.

Cita MLA

Gregory, Derek, et al. Human Geography: Society, Space, and Social Science. Macmillan, 1994.