The Precambrian of the Rocky Mountain region
MLA
Hedge, Carl E., Jack Edward Harrison, and Robert S Houston. The Precambrian of the Rocky Mountain Region. Geological Survey Professional Paper. Washington: United States Department of the Interior, Geological Survey, 1986
APA, 7th edition
Hedge, C. E., Harrison, J. Edward, & Houston, R. S. (1986). The Precambrian of the Rocky Mountain region. Geological Survey professional paper. Washington: United States Department of the Interior, Geological Survey
Chicago, 17th edition
Hedge, Carl E., Jack Edward Harrison, and Robert S Houston. The Precambrian of the Rocky Mountain region. Geological Survey professional paper. Washington: United States Department of the Interior, Geological Survey, 1986