Cita APA

Lipsey, R. G. (1989). An introduction to positive economics (7th ed.). ELBS/ Weidenfeld & Nicholson.

Citación estilo Chicago

Lipsey, Richard G. An Introduction to Positive Economics. 7th ed. London: ELBS/ Weidenfeld & Nicholson, 1989.

Cita MLA

Lipsey, Richard G. An Introduction to Positive Economics. 7th ed. ELBS/ Weidenfeld & Nicholson, 1989.

Warning: These citations may not always be 100% accurate.