Cita APA

Marshall, A. (1966). Principles of economics. London: Macmillan.

Chicago Style Citation

Marshall, Alfred. Principles of Economics. London: Macmillan, 1966.

Cita MLA

Marshall, Alfred. Principles of Economics. London: Macmillan, 1966.

Atenció: Aquestes cites poden no estar 100% correctes.