TY - RPRT TI - Abnormal P-wave delays in The Geysers-Clear Lake Geothermal area, California AU - H. M. Iyer AU - D. H. Oppenheimer AU - T. Hitchcock PY - 1979 DO - 10.1126/science.204.4392.495 UR - https://pubs.usgs.gov/publication/70012520 ID - 70012520 ER -