Cita APA (7a ed.)

Friedman, M. (1964). Essays in positive economics. University of Chicago Press.

Cita Chicago Style (17a ed.)

Friedman, Milton. Essays in Positive Economics. Chicago ; London: University of Chicago Press, 1964.

Cita MLA (8a ed.)

Friedman, Milton. Essays in Positive Economics. University of Chicago Press, 1964.