APA (7th ed.) Citation

United States. Department of State. (1920). Preparation of patent and trade-mark cases. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Department of State. Preparation of Patent and Trade-mark Cases. Washington: U.S. GPO, 1920.

MLA (9th ed.) Citation

United States. Department of State. Preparation of Patent and Trade-mark Cases. U.S. GPO, 1920.

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