Howland, A. L., Garrels, E. M., & Jones, W. R. (1949). Chromite deposits of Boulder River area, Sweetgrass County, Montana. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationHowland, A. L., E. M. Garrels, and William R. Jones. Chromite Deposits of Boulder River Area, Sweetgrass County, Montana. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1949.
MLA (9th ed.) CitationHowland, A. L., et al. Chromite Deposits of Boulder River Area, Sweetgrass County, Montana. United States Department of the Interior, Geological Survey, 1949.
Warning: These citations may not always be 100% accurate.