TY - RPRT TI - Relative slope stability and land-use planning in the San Francisco Bay region, California AU - Tor Helge Nilsen AU - R. H. Wright AU - T.C. Vlasic AU - W. E. Spangle PY - 1979 DO - 10.3133/pp944 UR - https://pubs.usgs.gov/publication/pp944 ID - pp944 ER -