Citazione Stile APA (7a Edizione)

Bradford, M. G., Kent, A., & Bradford, M. (1993). Understanding human geography: People and their changing environments. Oxford Univ. Press.

Citazione stile Chigago Style (17a edizione)

Bradford, Michael G., Ashley Kent, e Michael Bradford. Understanding Human Geography: People and Their Changing Environments. Oxford [u.a.]: Oxford Univ. Press, 1993.

Citatione MLA (9a ed.)

Bradford, Michael G., et al. Understanding Human Geography: People and Their Changing Environments. Oxford Univ. Press, 1993.