Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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