APA (7th ed.) Citation

United States. Department of Agriculture. (1931). Explanation of American lumber standards. GPO.

Chicago Style (17th ed.) Citation

United States. Department of Agriculture. Explanation of American Lumber Standards. [Washington]: GPO, 1931.

MLA (9th ed.) Citation

United States. Department of Agriculture. Explanation of American Lumber Standards. GPO, 1931.

Warning: These citations may not always be 100% accurate.