TY - BOOK AU - Briggs, Reginald P., AU - Pomeroy, John S., AU - Davies, William E. CN - QE75 CN - QE75 CY - [Washington] : DA - 1975. ID - 120868 KW - Landslides N1 - "To accompany Map of susceptibility to landsliding, Allegheny County, Pennsylvania: U.S. Geological Survey miscellaneous field studies map MF-685.B." PB - U.S. Geological Survey, PP - [Washington] : PY - 1975. T1 - Landsliding in Allegheny County, Pennsylvania / TI - Landsliding in Allegheny County, Pennsylvania / VL - 728 ER -