APA (7th ed.) Citation
Henderson, J. V., & Poole, W. (1991). Principles of economics. D. C. Heath and Company.
Chicago Style (17th ed.) Citation
Henderson, J. Vernon, and William Poole. Principles of Economics. Lexington: D. C. Heath and Company, 1991.
MLA (9th ed.) Citation
Henderson, J. Vernon, and William Poole. Principles of Economics. D. C. Heath and Company, 1991.
Warning: These citations may not always be 100% accurate.