Citazione Stile APA (7a Edizione)

Foster, S., & Foster, J. (2001). Citizenship in focus (New curriculum edition, revised and expanded edition, reprinted.). Collins.

Citazione stile Chigago Style (17a edizione)

Foster, Simon, e John Foster. Citizenship in Focus. New curriculum edition, revised and expanded edition, reprinted. London: Collins, 2001.

Citatione MLA (9a ed.)

Foster, Simon, e John Foster. Citizenship in Focus. New curriculum edition, revised and expanded edition, reprinted. Collins, 2001.