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..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited 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.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUnited 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.