Cita APA (7a ed.)

Gilbert, G. (1877). Report on the geology of the Henry Mountains. United States Geographical and Geological Survey of the Rocky Montain Region.

Cita Chicago Style (17a ed.)

Gilbert, G.K. Report on the Geology of the Henry Mountains. Washington: United States Geographical and Geological Survey of the Rocky Montain Region, 1877.

Cita MLA (9a ed.)

Gilbert, G.K. Report on the Geology of the Henry Mountains. United States Geographical and Geological Survey of the Rocky Montain Region, 1877.