TY - RPRT TI - Preliminary geologic map of the Parrilla Creek NW Quadrangle, Duval County, Texas AU - D. H. Eargle AU - K. A. Dickinson PY - 1974 DO - 10.3133/ofr7445 UR - https://pubs.usgs.gov/publication/ofr7445 ID - ofr7445 ER -