TY - RPRT TI - Use of dye tracing to determine the direction of ground-water flow in karst terrane at the Kentucky State University Research Farm near Frankfort, Kentucky AU - D. S. Mull PY - 1993 DO - 10.3133/wri934063 UR - https://pubs.usgs.gov/publication/wri934063 ID - wri934063 ER -