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References
1.
Martin Sweets Company, Louisville, Kentucky.
2.
American Society for Testing and Materials, Philadelphia, Pa., "ASTM Standards", ASTM D790-66.
3.
Instron Engineering Corporation, Quincy, Mass.
4.
Gardner Laboratory Incorporated, Bethesda, Md., Catalog No. 1G-1115.
5.
loc. cit., "ASTM Standards", ASTM D256-56.
6.
loc. cit., "ASTM Standards", ASTM D1037-64.
7.
loc. cit., "ASTM Standards", ASTM D1761-68.
8.
USA Standard for Slotted and Recessed Head Wood Screws, USAS B18.6.1-1961.
9.
Snap-On Tools Corporation, Kenosha, Wisc., Model TQS-2.50.
