Visual economics : with rules for estimation of the earning ability after injuries to the eyes / by H. Magnus and H.V. Würdemann.
- Magnus, Hugo, 1842-1907.
- Date:
- 1902
Licence: In copyright
Credit: Visual economics : with rules for estimation of the earning ability after injuries to the eyes / by H. Magnus and H.V. Würdemann. Source: Wellcome Collection.
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