Citazione Stile APA (7a Edizione)

Hagen, O. F. L. (1964). The birth of the American tradition in art. Kennikat Press.

Citazione stile Chigago Style (17a edizione)

Hagen, Oskar Frank Leonard. The Birth of the American Tradition in Art. Port Washington, N.Y: Kennikat Press, 1964.

Citatione MLA (9a ed.)

Hagen, Oskar Frank Leonard. The Birth of the American Tradition in Art. Kennikat Press, 1964.