APA (7th ed.) Citation

(1926). U.S. Government master specification for varnish, shellac. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

U.S. Government Master Specification for Varnish, Shellac. [Washington?]: U.S. Government Printing Office, 1926.

MLA (9th ed.) Citation

U.S. Government Master Specification for Varnish, Shellac. U.S. Government Printing Office, 1926.

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