Style de citation APA (7e éd.)

Kettner, F. (1936). The need for a secretary of peace. Biosophical Institute.

Style de citation Chicago (17e éd.)

Kettner, Frederick. The Need for a Secretary of Peace. New York, N.Y.: Biosophical Institute, 1936.

Style de citation MLA (8e éd.)

Kettner, Frederick. The Need for a Secretary of Peace. Biosophical Institute, 1936.