United States. Congress. House. Committee on Roads. (1925). The old Oregon trail: Hearings before the Committee on Roads, House of Representatives, Sixty-eighth Congress, second session, on H.J. Res. 232, H.J. Res. 328, and S. 2053. January 23, February 13, 19, and 21, 1925 .. U.S. Govt. Print. Off..
Style de citation Chicago (17e éd.)United States. Congress. House. Committee on Roads. The Old Oregon Trail: Hearings Before the Committee on Roads, House of Representatives, Sixty-eighth Congress, Second Session, on H.J. Res. 232, H.J. Res. 328, and S. 2053. January 23, February 13, 19, and 21, 1925 .. Washington: U.S. Govt. Print. Off., 1925.
Style de citation MLA (8e éd.)United States. Congress. House. Committee on Roads. The Old Oregon Trail: Hearings Before the Committee on Roads, House of Representatives, Sixty-eighth Congress, Second Session, on H.J. Res. 232, H.J. Res. 328, and S. 2053. January 23, February 13, 19, and 21, 1925 .. U.S. Govt. Print. Off., 1925.