Cita APA (7th ed.)
Murphy, G. (1945). Human nature and enduring peace. Houghton Mifflin.
Cita Chicago (17th ed.)
Murphy, Gardner. Human Nature and Enduring Peace. Cambridge, EUA: Houghton Mifflin, 1945.
Cita MLA (9th ed.)
Murphy, Gardner. Human Nature and Enduring Peace. Houghton Mifflin, 1945.
Atenció: Aquestes cites poden no estar 100% correctes.