TY - RPRT TI - Seismic and gravity surveys of Naval Petroleum Reserve No. 4 and adjoining areas, Alaska: Exploration of Naval Petroleum Reserve No. 4 and adjacent areas, northern Alaska, 1944-53. Part 4: Geophysics AU - John R. Woolson PY - 1962 DO - 10.3133/pp304a UR - https://pubs.usgs.gov/publication/pp304A ID - pp304A ER -