TY - RPRT TI - Selected geologic data for the Beltsville Quadrangle, Prince Georges, Montgomery and Howard counties, Maryland AU - Charles F. Withington AU - A.J. Froelich PY - 1974 DO - 10.3133/ofr741129 UR - https://pubs.usgs.gov/publication/ofr741129 ID - ofr741129 ER -