APA (7th ed.) Citation

(1920). Recommended specifications for leaded zinc oxide, dry and paste. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Recommended Specifications for Leaded Zinc Oxide, Dry and Paste. [Washington?]: U.S. Government Printing Office, 1920.

MLA (9th ed.) Citation

Recommended Specifications for Leaded Zinc Oxide, Dry and Paste. U.S. Government Printing Office, 1920.

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