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References
1.U.S. Foamed Plastic Markets & Directory, 1970–71 (Stamford, Conn. : Technomic Publishing Co., Inc. , 1971 ), p. 44 .
2.Public release of the Society of the Plastics Industry , September 16, 1970 (New York, New York ).
3.Childress v. Cook Paint and Varnish Co. , No. 11,077 Cir.Ct. Schuyler County, Mo., Oct. 6, 1971 .
