APA (7th ed.) Citation

(1928). U.S. Government master specification for shades, window; rollers; slats; cords; and accessories. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

U.S. Government Master Specification for Shades, Window; Rollers; Slats; Cords; and Accessories. [Washington?]: U.S. Government Printing Office, 1928.

MLA (9th ed.) Citation

U.S. Government Master Specification for Shades, Window; Rollers; Slats; Cords; and Accessories. U.S. Government Printing Office, 1928.