Cite
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MLA (8th Edition)

Geologic and Structure Map of the North Half of the Powder River Basin, Southeastern Montana and Northeastern Wyoming. For sale by Map Distribution, U.S. Geological Survey, 1992.

APA (7th Edition)

Geologic and structure map of the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming. (1992). For sale by Map Distribution, U.S. Geological Survey.

Chicago (17th Edition)

“Geologic and Structure Map of the North Half of the Powder River Basin, Southeastern Montana and Northeastern Wyoming.” Denver, CO: For sale by Map Distribution, U.S. Geological Survey, 1992.