TY - RPRT TI - Extent and frequency of inundation on the Perkiomen Creek flood plain from Green Lane Reservoir to the Schuylkill River (near Oaks, Pennsylvania) AU - William F. Busch PY - 1969 DO - 10.3133/ofr6929 UR - https://pubs.usgs.gov/publication/ofr6929 ID - ofr6929 ER -