Cita APA (7a ed.)

Geological Survey (U.S.), Weed, W. H., Pirsson, L. V., & Reeves, F. M. (1928). Map showing Areal and Structural Geology of the Highwood Mountains and adjacent Plains, Montana. Department of the Interior, U.S. Geological Survey.

Cita Chicago Style (17a ed.)

Geological Survey (U.S.), Walter Harvey Weed, L. V. Pirsson, y Frank M. Reeves. Map Showing Areal and Structural Geology of the Highwood Mountains and Adjacent Plains, Montana. Washington D. C.: Department of the Interior, U.S. Geological Survey, 1928.

Cita MLA (9a ed.)

Geological Survey (U.S.), et al. Map Showing Areal and Structural Geology of the Highwood Mountains and Adjacent Plains, Montana. Department of the Interior, U.S. Geological Survey, 1928.