Showing 1 - 2 results of 2 for search 'Bock, Richard Ernst, 1899-', query time: 0.11s Refine Results
  1. 1
    Praxis der magnetischen Messungen /
    by Bock, Richard Ernst, 1899-
    Published 1942
    Book
  2. 2
    Atlas of magnetic declination of Europe for epoch 1944.5.
    by Bock, Richard Ernst, 1899-
    Published 1951
    Book
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