APA (7th ed.) Citation

(1928). Structural slate (for plumbing and sanitary purposes). U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Structural Slate (for Plumbing and Sanitary Purposes). [Washington?]: U.S. Government Printing Office, 1928.

MLA (9th ed.) Citation

Structural Slate (for Plumbing and Sanitary Purposes). U.S. Government Printing Office, 1928.

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