. "Natural conditions that control landsliding in the San Francisco Bay region - an analysis based on data from the 1968-69 and 1972-73 rainy seasons : Nine-county study of landslide activity in relation to ancient landslide deposits, slope, bedrock geology, and rainfall pattern as keys to slope stability an land-use planning" . "Natural conditions that control landsliding in the San Francisco Bay region : an analysis based on data from the 1968-69 and 1972-73 rainy seasons" . . . . . "Natural conditions that control landsliding in the San Francisco Bay region : an analysis based on data from 1968 - 69 and 1972 - 73 rainy seasons; Nine-county study landslide activity in relation to ancient landslide deposits, slope, bedrock geology, and rainfall pattern as keys to slope stability in land-use planning" . . . . . . . . . . . . . "Natural conditions that control landsliding in the San Francisco Bay region, an analysis based on data from 1968-69 and 1972-73 rainy seasons" . . . . . . . . "Nine-county study of landslide activity in relation to ancient landslide deposits, slope, bedrock geology, and rainfall pattern as keys to slope stability in land-use planning." . "Slopes (Soil mechanics)" . . . . "California" . . "Landslides." . . "Slopes (Soil mechanics) California San Francisco Bay Area." . . "Geological Survey (U.S.)," . . "Landslides California San Francisco Bay Area." . .