Mero, John L. A method of determining the direction of net sand drift along Northern California beaches using natural thorium as a radioactive tracer.Submitted for coursework in Geological Engineering 299, Department of Mineral Technology, University of California, Riverside, 1959, Box: 8, Item: R-51. Hans A. Einstein Sediment Transport collection, MS-76/12. Water Resources Collections & Archives. https://public.ucrlib.aspace.cdlib.org/repositories/5/archival_objects/580420 Accessed December 16, 2024.