Cita APA (7th ed.)
Randall, J. H., & Holley, H. (1932). World Unity: Interpreting the spirit of the age.
Cita Chicago (17th ed.)
Randall, John Herman, i Horace Holley. World Unity: Interpreting the Spirit of the Age. New York, 1932.
Cita MLA (9th ed.)
Randall, John Herman, i Horace Holley. World Unity: Interpreting the Spirit of the Age. 1932.
Atenció: Aquestes cites poden no estar 100% correctes.