Casey, G. D. (1996). Hydrogeologic framework of the midwestern basins and arches region in parts of Indiana, Ohio, Michigan and Illinois. US Geological Survey.
Chicago-Zitierstil (17. Ausg.)Casey, George D. Hydrogeologic Framework of the Midwestern Basins and Arches Region in Parts of Indiana, Ohio, Michigan and Illinois. Denver, CO: US Geological Survey, 1996.
MLA-Zitierstil (9. Ausg.)Casey, George D. Hydrogeologic Framework of the Midwestern Basins and Arches Region in Parts of Indiana, Ohio, Michigan and Illinois. US Geological Survey, 1996.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.