References
- DeanJoel, Capital Budgeting, Columbia University Press, New York, N. Y. 1957.
- HuntPearson,WilliamsCharles M., and DonaldsonGordon, Basic Business Finance, Third Edition, Richard D. Irwin Inc., Homewood, Ill., 1964.
- WestonJ. Fred and BrighamEugene F., Managerial Finance, Third Edition, Holt, Rinehart and Winston, New York, N. Y. 1962.
- DeanJoel, “Measuring the Productivity of Capital”, Harvard Business Review, January 1964.
- BarrA. C. and AmickC. L., “Fundamentals of Lighting Cost Analysis”, Illuminating Engineering, Vol. 47, May 1952, p. 260.
- IES Lighting Handbook, Appendix A-10, Fourth Edition, Illuminating Engineering Society, New York, N. Y. 1966.