United States. Congress. House. Committee on Mines and Mining & ProQuest (Firm). (1872). Report of the Commissioners and Evidence Taken in Regard to the Sutro Tunnel: Hearings before the United States House Committee on Mines and Mining, Forty-Second Congress, second session, on Feb. 12, 16, 20, 21, 23, 24, 26-29, Mar. 1, 2, 15, 18, 19, 22, 23, 25-29, 1872. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Mines and Mining and ProQuest (Firm). Report of the Commissioners and Evidence Taken in Regard to the Sutro Tunnel: Hearings Before the United States House Committee on Mines and Mining, Forty-Second Congress, Second Session, on Feb. 12, 16, 20, 21, 23, 24, 26-29, Mar. 1, 2, 15, 18, 19, 22, 23, 25-29, 1872. Washington: [publisher not identified], 1872.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Mines and Mining and ProQuest (Firm). Report of the Commissioners and Evidence Taken in Regard to the Sutro Tunnel: Hearings Before the United States House Committee on Mines and Mining, Forty-Second Congress, Second Session, on Feb. 12, 16, 20, 21, 23, 24, 26-29, Mar. 1, 2, 15, 18, 19, 22, 23, 25-29, 1872. [publisher not identified], 1872.