Citazione Stile APA (7a Edizione)

Davis, O. L. (1975). Learning about countries and societies. American Book.

Citazione stile Chigago Style (17a edizione)

Davis, Ozro Luke. Learning About Countries and Societies. New York [u.a.]: American Book, 1975.

Citatione MLA (9a ed.)

Davis, Ozro Luke. Learning About Countries and Societies. American Book, 1975.