APA (7th ed.) Citation

Center for Building Technology, United States. National Bureau of Standards, United States. Occupational Safety and Health Administration, & Knab, L. I. (1980). A study of lumber used for bracing trenches in the United States. Dept. of Commerce, National Bureau of Standards : for. sale by the Supt. of Docs., U.S. Print. Off.

Chicago Style (17th ed.) Citation

Center for Building Technology, United States. National Bureau of Standards, United States. Occupational Safety and Health Administration, and Lawrence I. Knab. A Study of Lumber Used for Bracing Trenches in the United States. Washington: Dept. of Commerce, National Bureau of Standards : for. sale by the Supt. of Docs., U.S. Print. Off, 1980.

MLA (9th ed.) Citation

Center for Building Technology, et al. A Study of Lumber Used for Bracing Trenches in the United States. Dept. of Commerce, National Bureau of Standards : for. sale by the Supt. of Docs., U.S. Print. Off, 1980.