1. French karst;Jacques,1968
2. Chemical geohydrology;Back,1965
3. Caves of Tennessee;Barr;Tennessee Dept. Conserv. and Commerce, Div. Geology Bull.,1961
4. The large springs of Missouri;Beckman;Missouri Geol. Survey and Water Resources,1944
5. The cycle of subterranean drainage as illustrated in the Bloomington, Indiana, quadrangle;Beede,1911