Landslides in Alameda County, California, a digital database extracted from preliminary photointerpretation maps of surficial deposits by T.H. Nilsen in USGS open-file report 75-277 [electronic resource] / by Sebastian Roberts, Michelle A. Roberts, and Eileen M. Brennan, with a preface by Richard J. Pike and Sebastian Roberts.
Imprint
[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 1999.