TY - RPRT TI - Geologic map of the west half of the Winston-Salem Quadrangle, North Carolina, Virginia, and Tennessee AU - D.W. Rankin AU - G.H. Espenshade AU - R. B. Neuman PY - 1972 DO - 10.3133/i709a UR - https://pubs.usgs.gov/publication/i709A ID - i709A ER -