TY - RPRT TI - Aeromagnetic map of the South Boston Quadrangle, Halifax County, Virginia, and Person and Granville counties, North Carolina AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1971 DO - 10.3133/gp747 UR - https://pubs.usgs.gov/publication/gp747 ID - gp747 ER -