Cita APA (7th ed.)
Kidder, M. B. (1942). No limits but the sky. Harvard University Press.
Cita Chicago (17th ed.)
Kidder, Mary B. No Limits but the Sky. Cambridge: Harvard University Press, 1942.
Cita MLA (9th ed.)
Kidder, Mary B. No Limits but the Sky. Harvard University Press, 1942.
Atenció: Aquestes cites poden no estar 100% correctes.