APA

Bryce J. B., . (1921). Modern democracies. New York: Macmillan.

Chicago

Bryce James Bryce, . 1921. Modern democracies. New York: Macmillan.

Harvard

Bryce J. B., . (1921). Modern democracies. New York: Macmillan.

MLA

Bryce James Bryce, . Modern democracies. New York: Macmillan. 1921.