TY  - RPRT
TI  - Geologic map of the Manassas quadrangle, Fairfax and Prince William Counties, Virginia
AU  - Avery Ala Drake
AU  - A.J. Froelich
AU  - R. E. Weems
AU  - K. Y. Lee
PY  - 1994
DO  - 10.3133/gq1732
UR  - https://pubs.usgs.gov/publication/gq1732
ID  - gq1732
ER  -