Products Laboratory (U.S.), Forest. Supplement to Buckling of Flat Plywood Plates In Compression, Shear, Or Combined Compression and Shear : Buckling Tests of Flat Plywood Plates In Compression with Face Grain 45 Degrees to Load -- Loaded Edges Clamped, Others Simply Supported. : Madison, Wis. : U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1962.