Specification of George William Wigner : treating and purifying sewage.
- Wigner, George William.
- Date:
- 1870
Licence: Public Domain Mark
Credit: Specification of George William Wigner : treating and purifying sewage. Source: Wellcome Collection.
1/12
Licence: Public Domain Mark
Credit: Specification of George William Wigner : treating and purifying sewage. Source: Wellcome Collection.