Forest Products Laboratory, Forest Service, U.S. Department of Agriculture: Wood Handbook, Government Printing Office, Washington, D.C. National Hardwood Lumber Association, Chicago, Ill.: Rules for the Measurement and Inspection of Hardwood Lumber, Cypress, Veneer, and Thin Lumber.
American Forest and Paper Association, Washington, D.C.: National Design Specification for Wood Construction.
U.S. Department of Commerce, National Bureau of Standards, Washington, D.C.: American Softwood Lumber Standard, Voluntary Practice Standard PS20;
Douglas Fir Plywood, Commercial Standard CS 45; Hardwood Plywood, Commercial Standard CS 35.
Western Wood Products Association, Portland, Ore.: Western Woods Use Book.
K. F. Faherty and T. G. Williamson, Wood Engineering and Construction Handbook, McGraw-Hill Publishing Company, New York.
