APA ציטוט

Lipsey, R. G. (1975). An introduction to positive economics. ELBS, Weidenfeld and Nicolson.

Chicago Style (17th ed.) Citation

Lipsey, Richard G. An Introduction to Positive Economics. London: ELBS, Weidenfeld and Nicolson, 1975.

ציטוט MLA

Lipsey, Richard G. An Introduction to Positive Economics. ELBS, Weidenfeld and Nicolson, 1975.