Citazione Stile APA (7a Edizione)

Davis, O. L. (1971). Learning about countries and societies (Teacher ed.). American Book.

Citazione stile Chigago Style (17a edizione)

Davis, Ozro Luke. Learning About Countries and Societies. Teacher ed. New York [u.a.]: American Book, 1971.

Citatione MLA (9a ed.)

Davis, Ozro Luke. Learning About Countries and Societies. Teacher ed. American Book, 1971.