Moral sanitation / by Ernest R. Groves.
- Groves, Ernest R. (Ernest Rutherford), 1877-1946.
- Date:
- 1916
Licence: In copyright
Credit: Moral sanitation / by Ernest R. Groves. Source: Wellcome Collection.
18/144 (page 6)
Licence: In copyright
Credit: Moral sanitation / by Ernest R. Groves. Source: Wellcome Collection.