APA (7th ed.) Citation

(1928). Hollow metal single-acting swing doors, frames, and trim. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Hollow Metal Single-acting Swing Doors, Frames, and Trim. [Washington?]: U.S. Government Printing Office, 1928.

MLA (9th ed.) Citation

Hollow Metal Single-acting Swing Doors, Frames, and Trim. U.S. Government Printing Office, 1928.