United States. Patent Office & ProQuest (Firm). (1839). Report from the Commissioner of Patents, transmitting information in relation to the duties of his office for the year 1838. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Patent Office and ProQuest (Firm). Report from the Commissioner of Patents, Transmitting Information in Relation to the Duties of His Office for the Year 1838. Washington: [publisher not identified], 1839.
MLA (9th ed.) CitationUnited States. Patent Office and ProQuest (Firm). Report from the Commissioner of Patents, Transmitting Information in Relation to the Duties of His Office for the Year 1838. [publisher not identified], 1839.
Warning: These citations may not always be 100% accurate.