1907. Ellis, R. W. (Robert W.). Detached from: A soil survey of Clark, Floyd, and Harrison counties / Robert W. Ellis. In 32nd Annual report of the Indiana Department of Geology a... Indiana Department of Geology and Natural Resources and William B. Burford.
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1907. Ellis, R. W. (Robert W.). Detached from: A soil survey of Clark, Floyd, and Harrison counties / Robert W. Ellis. In 32nd Annual report of the Indiana Department of Geology a... Indiana Department of Geology and Natural Resources and William B. Burford.