Cita APA (7th ed.)
Strong, A. C. (1958). Free people. Westminister Press.
Cita Chicago (17th ed.)
Strong, Albert C. Free People. Westminister Press, 1958.
Cita MLA (9th ed.)
Strong, Albert C. Free People. Westminister Press, 1958.
Atenció: Aquestes cites poden no estar 100% correctes.