APA (7th ed.) Citation

Lipsey, R. G. (1983). An introduction to positive economics (6th ed.). Weidenfeld & Nicolson.

Chicago Style (17th ed.) Citation

Lipsey, Richard G. An Introduction to Positive Economics. 6th ed. London: Weidenfeld & Nicolson, 1983.

MLA (9th ed.) Citation

Lipsey, Richard G. An Introduction to Positive Economics. 6th ed. Weidenfeld & Nicolson, 1983.

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