United States. Army. Corps of Engineers, Ludlow, W., Thompson, R. E., Grinnell, G. B., Dana, E. S., & Whitfield, R. P. (1876). Report of a reconnaissance from Carroll, Montana Territory: On the upper Missouri, to the Yellowstone national park, and return, made in the summer of 1875. Govt. Print. Off..
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)United States. Army. Corps of Engineers, William Ludlow, R. E. Thompson, George Bird Grinnell, Edward Salisbury Dana, và R. P. Whitfield. Report of a Reconnaissance from Carroll, Montana Territory: On the Upper Missouri, to the Yellowstone National Park, and Return, Made in the Summer of 1875. Washington: Govt. Print. Off., 1876.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)United States. Army. Corps of Engineers, et al. Report of a Reconnaissance from Carroll, Montana Territory: On the Upper Missouri, to the Yellowstone National Park, and Return, Made in the Summer of 1875. Govt. Print. Off., 1876.