TY  - RPRT
TI  - Geologic map and sections of parts of the Portland and Belvidere quadrangles, New Jersey-Pennsylvania
AU  - Avery A. Drake
AU  - J. B. Epstein
AU  - J.M. Aaron
PY  - 1969
DO  - 10.3133/i552
UR  - https://pubs.usgs.gov/publication/i552
ID  - i552
ER  -