TY  - RPRT
TI  - Municipalities, school districts, and selected other features related to quadrangle topographic maps, Greater Pittsburgh region, Pennsylvania
AU  - Pauline F. Silsley
AU  - Reginald Peter Briggs
PY  - 1973
DO  - 10.3133/ofr73262
UR  - https://pubs.usgs.gov/publication/ofr73262
ID  - ofr73262
ER  -