APA (7th ed.) Citation

United States. Patent Office. (1928). Index of trade-marks issued from the United States Patent Office. The Office.

Chicago Style (17th ed.) Citation

United States. Patent Office. Index of Trade-marks Issued from the United States Patent Office. Washington: The Office, 1928.

MLA (9th ed.) Citation

United States. Patent Office. Index of Trade-marks Issued from the United States Patent Office. The Office, 1928.