Citazione Stile APA (7a Edizione)

Nagle, G., & Spencer, K. (2001). Geography through diagrams: AS & A Level (3. ed.). Oxford Univ. Press.

Citazione stile Chigago Style (17a edizione)

Nagle, Garrett, e Kris Spencer. Geography Through Diagrams: AS & A Level. 3. ed. Oxford: Oxford Univ. Press, 2001.

Citatione MLA (9a ed.)

Nagle, Garrett, e Kris Spencer. Geography Through Diagrams: AS & A Level. 3. ed. Oxford Univ. Press, 2001.