Citazione Stile APA (7a Edizione)

Nagle, G., & Spencer, K. (1996). A geography of the European Union: A regional and economic perspective. Oxford Univ. Press.

Citazione stile Chigago Style (17a edizione)

Nagle, Garrett, e Kris Spencer. A Geography of the European Union: A Regional and Economic Perspective. Oxford [u.a.]: Oxford Univ. Press, 1996.

Citatione MLA (9a ed.)

Nagle, Garrett, e Kris Spencer. A Geography of the European Union: A Regional and Economic Perspective. Oxford Univ. Press, 1996.