TY - RPRT TI - Landslide susceptibility map of the Ambridge 7 1/2-minute Quadrangle, Allegheny County and vicinity, Pennsylvania AU - John S. Pomeroy PY - 1974 DO - 10.3133/ofr7476 UR - https://pubs.usgs.gov/publication/ofr7476 ID - ofr7476 ER -