APA (7th ed.) Citation

Austin, G. S. (1975). Clay and shale resources of Indiana. State of Indiana, Dept. of Natural Resources, Geological Survey.

Chicago Style (17th ed.) Citation

Austin, George S. Clay and Shale Resources of Indiana. Bloomington: State of Indiana, Dept. of Natural Resources, Geological Survey, 1975.

MLA (9th ed.) Citation

Austin, George S. Clay and Shale Resources of Indiana. State of Indiana, Dept. of Natural Resources, Geological Survey, 1975.