The examination of water supplies / by John C. Thresh.
- Thresh, John C. (John Clough), 1850-1932.
- Date:
- 1904
Licence: In copyright
Credit: The examination of water supplies / by John C. Thresh. Source: Wellcome Collection.
Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.
487/500 (page 7)