APA Edition Citation

Lipsey, R. G., & Chrystal, K. A. (1995). Introduction to positive economics.

Chicago Edition Citation

Lipsey, Richard G., and K. Alee Chrystal. Introduction to Positive Economics. 1995.

MLA Edition Citation

Lipsey, Richard G., and K. Alee Chrystal. Introduction to Positive Economics. 1995.

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