APA (7th ed.) Citation

Gray, H. H. (1978). Buffalo Wallow Group, upper Chesterian (Mississippian) of southern Indiana. [State of Indiana, Dept. of Natural Resources, Geological Survey].

Chicago Style (17th ed.) Citation

Gray, Henry Hamilton. Buffalo Wallow Group, Upper Chesterian (Mississippian) of Southern Indiana. Bloomington, Ind.: [State of Indiana, Dept. of Natural Resources, Geological Survey], 1978.

MLA (9th ed.) Citation

Gray, Henry Hamilton. Buffalo Wallow Group, Upper Chesterian (Mississippian) of Southern Indiana. [State of Indiana, Dept. of Natural Resources, Geological Survey], 1978.