Cita APA

Lipsey, R. G. (1975). Introduction to positive economics (4th ed.). ELBS & Weidenfeld and Nicolson.

Chicago Edition Citation

Lipsey, Richard G. Introduction to Positive Economics. 4th ed. ELBS & Weidenfeld and Nicolson, 1975.

Cita MLA

Lipsey, Richard G. Introduction to Positive Economics. 4th ed. ELBS & Weidenfeld and Nicolson, 1975.

Atenció: Aquestes cites poden no estar 100% correctes.