Posner, R. A. (1994). Sex and reason. U.S.A.: Harvard University Press.
Cita Chicago (17th ed.)Posner, Richard A. Sex and Reason. U.S.A.: Harvard University Press, 1994.
Cita MLA (8th ed.)Posner, Richard A. Sex and Reason. U.S.A.: Harvard University Press, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.