Cita APA

Powell, J. W. (1875). Exploration of the Colorado river of the west and its tributaries. Explored in 1869, 1870, 1871, and 1872, under the direction of the secretary of the Smithsonian Institution (1a. ed.). Government Printing Office.

Citación estilo Chicago

Powell, J. W. Exploration of the Colorado River of the West and Its Tributaries. Explored in 1869, 1870, 1871, and 1872, Under the Direction of the Secretary of the Smithsonian Institution. 1a. ed. Washington, D.C: Government Printing Office, 1875.

Cita MLA

Powell, J. W. Exploration of the Colorado River of the West and Its Tributaries. Explored in 1869, 1870, 1871, and 1872, Under the Direction of the Secretary of the Smithsonian Institution. 1a. ed. Government Printing Office, 1875.