@article{219763, note = {Imprint from transmittal sheet.}, author = {Gibbs, James F.}, url = {http://library.usi.edu/record/219763}, title = {Seismic velocities and geologic logs from boreholes at three downhole arrays in San Francisco, California /}, publisher = {U.S. Geological Survey,}, recid = {219763}, pages = {i, 40 p. :}, address = {[Menlo Park, CA] :}, year = {1994}, }