Sort By:
  1. Geology and oil resources of the Santa Maria oil district, Santa Barbara County, California /
    By: Arnold, Ralph, - Anderson, Robert van Vleck,
    Publication info: Washington :Govt. Print. Off.,1907.
    Holding Institution: Smithsonian Libraries
    View Book
  2. Paleontology of the Coalinga district, Fesno and Kings counties, California.
    By: Arnold, Ralph,
    Publication info: WashingtonGovt. Print. Off.1909
    Holding Institution: University of Toronto - Robarts Library
    View Book