Cita APA

Lipsey, R. G. (1963). An introduction to positive economics. London: Weidenfeld and Nicolson.

Chicago Style Citation

Lipsey, Richard G. An Introduction to Positive Economics. London: Weidenfeld and Nicolson, 1963.

Cita MLA

Lipsey, Richard G. An Introduction to Positive Economics. London: Weidenfeld and Nicolson, 1963.

Atenció: Aquestes cites poden no estar 100% correctes.