The theme is freedom

MLA

Dos Passos, John. The Theme Is Freedom. New York: Dodd, Mead, 1956.

APA

Dos Passos, J. (1956). The theme is freedom. New York: Dodd, Mead.

Chicago

Dos Passos, John, The Theme Is Freedom. New York: Dodd, Mead, 1956.