Safe counsel, or, Practical eugenics / by B.G. Jefferis and J.L. Nichols ; edited and completely revised by J.L. Nichols.
- Jefferis, B. G. (Benjamin Grant), 1851-
- Date:
- [1930], ©1930
Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
Credit: Safe counsel, or, Practical eugenics / by B.G. Jefferis and J.L. Nichols ; edited and completely revised by J.L. Nichols. Source: Wellcome Collection.
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