TY - RPRT TI - In-situ measurements of seismic velocity at 27 locations in the Los Angeles, California region AU - James F. Gibbs AU - Thomas E. Fumal AU - Edward F. Roth PY - 1980 DO - 10.3133/ofr80378 UR - https://pubs.usgs.gov/publication/ofr80378 ID - ofr80378 ER -