APA (7th ed.) Citation

(1925). U.S. Government master specification for rubber packings and gaskets (molded, sheet, and strip). U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

U.S. Government Master Specification for Rubber Packings and Gaskets (molded, Sheet, and Strip). [Washington?]: U.S. Government Printing Office, 1925.

MLA (9th ed.) Citation

U.S. Government Master Specification for Rubber Packings and Gaskets (molded, Sheet, and Strip). U.S. Government Printing Office, 1925.