United States Geological Exploration of the Fortieth Parallel & King, C. (1870). Report of the Geological exploration of the fortieth parallel made by order of the Secretary of War according to the acts of Congress of March 2, 1867, and March 3, 1869: Under the direction of ... A. A. Humphreys, chief of engineers. Govt. Print. Off..
Cita Chicago Style (17a ed.)United States Geological Exploration of the Fortieth Parallel y Clarence King. Report of the Geological Exploration of the Fortieth Parallel Made by Order of the Secretary of War According to the Acts of Congress of March 2, 1867, and March 3, 1869: Under the Direction of ... A. A. Humphreys, Chief of Engineers. [Washington: Govt. Print. Off., 1870.
Cita MLA (8a ed.)United States Geological Exploration of the Fortieth Parallel y Clarence King. Report of the Geological Exploration of the Fortieth Parallel Made by Order of the Secretary of War According to the Acts of Congress of March 2, 1867, and March 3, 1869: Under the Direction of ... A. A. Humphreys, Chief of Engineers. Govt. Print. Off., 1870.