APA (7th ed.) Citation

(1924). U.S. Government master specification for writing ink. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

U.S. Government Master Specification for Writing Ink. [Washington?]: U.S. Government Printing Office, 1924.

MLA (9th ed.) Citation

U.S. Government Master Specification for Writing Ink. U.S. Government Printing Office, 1924.

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