APA (7th ed.) Citation

Werren, F. (1975). Allowable bending stresses of wood for use in portable wood ladders. Dept. of Agriculture, Forest Service, Forest Products Laboratory.

Chicago Style (17th ed.) Citation

Werren, Fred. Allowable Bending Stresses of Wood for Use in Portable Wood Ladders. Madison, Wis.: Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1975.

MLA (9th ed.) Citation

Werren, Fred. Allowable Bending Stresses of Wood for Use in Portable Wood Ladders. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1975.