Cita APA (7a ed.)

Harrison, R. G. (1993). Hybrid zones and the evolutionary process. Oxford University Press.

Cita Chicago Style (17a ed.)

Harrison, Richard G. Hybrid Zones and the Evolutionary Process. New York [etc.]: Oxford University Press, 1993.

Cita MLA (9a ed.)

Harrison, Richard G. Hybrid Zones and the Evolutionary Process. Oxford University Press, 1993.