TY - RPRT TI - Astrogeologic studies, annual progress report, July 1, 1964 to July 1, 1965 AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1965 DO - 10.3133/ofr66141 UR - https://pubs.usgs.gov/publication/ofr66141 ID - ofr66141 ER -