TY  - RPRT
TI  - Geologic map of the Riegelsville quadrangle, Pennsylvania-New Jersey
AU  - Avery Ala Drake
AU  - Dean B. McLaughlin
AU  - Robert Ellis Davis
PY  - 1967
DO  - 10.3133/gq593
UR  - https://pubs.usgs.gov/publication/gq593
ID  - gq593
ER  -