APA Citation

Lipsey, R. G. An introduction to positive economics (4th ed.). English Language Book Society.

Chicago Style Citation

Lipsey, Richard G. An Introduction to Positive Economics. 4th ed. English Language Book Society.

MLA Citation

Lipsey, Richard G. An Introduction to Positive Economics. 4th ed. English Language Book Society.

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