TY  - RPRT
TI  - Geologic map of the Allentown East quadrangle, Lehigh, Northampton, and Bucks Counties, Pennsylvania
AU  - Avery A. Drake
PY  - 1996
DO  - 10.3133/ofr9622
UR  - https://pubs.usgs.gov/publication/ofr9622
ID  - ofr9622
ER  -