TY - RPRT TI - Characteristics of radioactivity patterns and their relations to geologic features in the southeastern quarter of the Winston-Salem Quadrangle, North Carolina, Virginia, Tennessee AU - Gilbert H. Espenshade PY - 1978 DO - 10.3133/ofr78780 UR - https://pubs.usgs.gov/publication/ofr78780 ID - ofr78780 ER -