TY - RPRT TI - Common-depth-point seismic-reflection survey on the Mississippi River in the vicinity of Alton, Illinois AU - G. B. Tirey AU - R. A. Wise AU - E. A. Winget PY - 1984 DO - 10.3133/ofr8481 UR - https://pubs.usgs.gov/publication/ofr8481 ID - ofr8481 ER -