Chicago

Products Laboratory (U.S.), Forest, 1914- Lewis, 1914- Heebink, Willard Sherwin Cottingham, and E. R Dawley. 1960. Supplement to Design of Plywood Webs In Box Beams : Additional Tests of Box Beams and I-Beams to Substantiate Further the Design Curves for Plywood Webs In Box Beams Tests of Plywood Webs In the Tension Field. : Madison, Wis. : U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory.