Sando, W. J., & Mamet, B. L. (1981). Distribution and stratigraphic significance of foraminifera and algae in well cores from Madison group (Mississippian), Williston basin, Montana. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationSando, William Jasper, and Bernard L. Mamet. Distribution and Stratigraphic Significance of Foraminifera and Algae in Well Cores from Madison Group (Mississippian), Williston Basin, Montana. [Reston, Va.]: United States Department of the Interior, Geological Survey, 1981.
MLA (9th ed.) CitationSando, William Jasper, and Bernard L. Mamet. Distribution and Stratigraphic Significance of Foraminifera and Algae in Well Cores from Madison Group (Mississippian), Williston Basin, Montana. United States Department of the Interior, Geological Survey, 1981.