APA

Hoffman P. G., . (1951). Peace can be won. New York: Doubleday.

Chicago

Hoffman Paul G, . 1951. Peace can be won. New York: Doubleday.

Harvard

Hoffman P. G., . (1951). Peace can be won. New York: Doubleday.

MLA

Hoffman Paul G, . Peace can be won. New York: Doubleday. 1951.