United States. Congress. Senate. Committee on Patents & ProQuest (Firm). (1873). [Petition of E. P. Torrey and William B. Tilton, for extension of patent for improvement in door-springs.]. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Patents and ProQuest (Firm). [Petition of E. P. Torrey and William B. Tilton, for Extension of Patent for Improvement in Door-springs.]. Washington: [publisher not identified], 1873.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Patents and ProQuest (Firm). [Petition of E. P. Torrey and William B. Tilton, for Extension of Patent for Improvement in Door-springs.]. [publisher not identified], 1873.
Warning: These citations may not always be 100% accurate.