Lipsey, R. G., & Chrystal, K. A. (1995). Introduction to positive economics.
Chicago Edition CitationLipsey, Richard G., and K. Alee Chrystal. Introduction to Positive Economics. 1995.
MLA Edition CitationLipsey, Richard G., and K. Alee Chrystal. Introduction to Positive Economics. 1995.
Warning: These citations may not always be 100% accurate.