Cita APA (7th ed.)

Getis, A., Getis, J., & Fellmann, J. (1985). Human geography. London.

Cita Chicago (17th ed.)

Getis, Arthur, Judith Getis, i Jerome Fellmann. Human Geography. New York: London, 1985.

Cita MLA (9th ed.)

Getis, Arthur, et al. Human Geography. London, 1985.