Showing 1 - 2 results of 2 for search 'Ries, Heinrich 1871-1951', query time: 0.01s Refine Results
  1. 1

    Elements of engineering geology by Ries, Heinrich 1871-1951

    Published 1947
    Book
  2. 2

    Elementary economic geology by Ries, Heinrich 1871-1951

    Published 1930
    Book

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