Lipsey, R. G., & Crystal, K. A. (1995). (An) Introduction to positive economics (8th ed.). Oxford: Oxford University Press.
Chicago Style CitationLipsey, Richard G., and K. Alec Crystal. (An) Introduction to Positive Economics. 8th ed. Oxford: Oxford University Press, 1995.
MLA CitationLipsey, Richard G., and K. Alec Crystal. (An) Introduction to Positive Economics. 8th ed. Oxford: Oxford University Press, 1995.
Warning: These citations may not always be 100% accurate.