TY - RPRT TI - Landslide susceptibility and land modified by man map of part of the Clinton 7 1/2-minute Quadrangle, Allegheny County and vicinity, Pennsylvania AU - J. S. Pomeroy PY - 1974 DO - 10.3133/ofr74234 UR - https://pubs.usgs.gov/publication/ofr74234 ID - ofr74234 ER -