United States. Congress. Senate. Committee on Patents & ProQuest (Firm). (1886). [Claim of Elon A. Marsh and Minard Lafever for confirmation of patent for steam engine valve-gear.]. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Patents and ProQuest (Firm). [Claim of Elon A. Marsh and Minard Lafever for Confirmation of Patent for Steam Engine Valve-gear.]. Washington: [publisher not identified], 1886.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Patents and ProQuest (Firm). [Claim of Elon A. Marsh and Minard Lafever for Confirmation of Patent for Steam Engine Valve-gear.]. [publisher not identified], 1886.
Warning: These citations may not always be 100% accurate.