TY - RPRT TI - Seismic refraction surveys in the vicinity of Eagle City, Clark County, Ohio AU - Jerry H. Hassemer AU - Joel S. Watkins AU - Norman G. Bailey PY - 1966 DO - 10.3133/ofr6658 UR - https://pubs.usgs.gov/publication/ofr6658 ID - ofr6658 ER -