1. “ASTM Standards on Plastics” (with related information), American Society for Testing Materials, Philadelphia, Pa.
2. “M.C.A.-M.I.T. Plastics Research Project Progress Report,” Massachusetts Institute of Technology, Cambridge, Mass., September 15, 1961.
3. S. Timoshenko, “Strength of Materials, Part I, Elementary Theory and Problems,”3rd Ed., D. VanNostrand Co., New York, 137, (1955).
4. F. B. Hildebrand, “Advanced Calculus for Engineers,”Prentice-Hall Inc., New York, 1956.
5. Shell Chemical Co., “Application Information Sheet SP-24-e”.