Specification of Edwin Hills and Benjamin Biggs : treating sewage.
- Hills, Edwin.
- Date:
- 1873
Licence: Public Domain Mark
Credit: Specification of Edwin Hills and Benjamin Biggs : treating sewage. Source: Wellcome Collection.
19/20 (page 17)
Licence: Public Domain Mark
Credit: Specification of Edwin Hills and Benjamin Biggs : treating sewage. Source: Wellcome Collection.