Cita APA (7th ed.)
Stein, A. S. (1945). Perilous balance. University of Minnesota Press.
Cita Chicago (17th ed.)
Stein, Arnold Sidney. Perilous Balance. Minneapolis: University of Minnesota Press, 1945.
Cita MLA (9th ed.)
Stein, Arnold Sidney. Perilous Balance. University of Minnesota Press, 1945.
Atenció: Aquestes cites poden no estar 100% correctes.