Cita APA (7th ed.)

Green, A., & Owen, D. (1990). The development of a classification of travel-to-work areas. Pergamon Press.

Cita Chicago (17th ed.)

Green, A.E, i D.W Owen. The Development of a Classification of Travel-to-work Areas. Oxford: Pergamon Press, 1990.

Cita MLA (9th ed.)

Green, A.E, i D.W Owen. The Development of a Classification of Travel-to-work Areas. Pergamon Press, 1990.