United States. Patent Office & ProQuest (Firm). (1868). Annual report of the Commissioner of Patents for the year 1867. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Patent Office and ProQuest (Firm). Annual Report of the Commissioner of Patents for the Year 1867. Washington: [publisher not identified], 1868.
MLA (9th ed.) CitationUnited States. Patent Office and ProQuest (Firm). Annual Report of the Commissioner of Patents for the Year 1867. [publisher not identified], 1868.
Warning: These citations may not always be 100% accurate.