APA

Sheen F. J., . (1940). Whence come wars. New York: Sheed & Ward.

Chicago

Sheen Fulton John, . 1940. Whence come wars. New York: Sheed & Ward.

Harvard

Sheen F. J., . (1940). Whence come wars. New York: Sheed & Ward.

MLA

Sheen Fulton John, . Whence come wars. New York: Sheed & Ward. 1940.