1. R.H. Perry, D.W. Green and J.O. Maloney, ed., Perry's Chemical Engineers Handbook, 6th ed. (New York: McGraw-Hill, 1984), pp. 3_147_3–154.
2. R.H. Perry, ibid, pp. 3–120–3–122 and 3-129-3-134.
3. C.R. Westaway and A.W. Loomis, eds., Cameron Hydraulic Data, 16th ed. (Woodcliff Lake, NJ: Ingersoll-Rand, 1981), pp. 4–53.
4. R.H. Perry, op. cit. 1, pp. 3–6–3–24.
5. Flow of Fluids through Valves, Fittings, and Pipe, Metric Edition—SI Units (New York: Crane Co., 1982), A–6.