Cite
MLA (8th Edition)
Geologic and Structure Map, with Contours On Top of the Pierre Shale, for the North Half of the Powder River Basin, Southeastern Montana and Northeastern Wyoming. For sale by Map Distribution, The Survey, 1993.
APA (7th Edition)
Geologic and structure map, with contours on top of the Pierre Shale, for the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming. (1993). For sale by Map Distribution, The Survey.
Chicago (17th Edition)
“Geologic and Structure Map, with Contours on Top of the Pierre Shale, for the North Half of the Powder River Basin, Southeastern Montana and Northeastern Wyoming.” Denver, CO: For sale by Map Distribution, The Survey, 1993.