TY  - RPRT
TI  - Preliminary surficial geologic maps (1:24,000) showing Quaternary deposits in parts of Union and Snyder Counties, central Pennsylvania
AU  - Denis E. Marchand
PY  - 1978
DO  - 10.3133/ofr781025
UR  - https://pubs.usgs.gov/publication/ofr781025
ID  - ofr781025
ER  -