TY - RPRT TI - Seismic velocities and geologic logs from boreholes at three downhole arrays in San Francisco, California AU - James F. Gibbs AU - Thomas E. Fumal AU - Roger D. Borcherdt AU - Richard E. Warrick AU - Hsi-Ping Liu AU - Robert E. Westerlund PY - 1994 DO - 10.3133/ofr94706 UR - https://pubs.usgs.gov/publication/ofr94706 ID - ofr94706 ER -