Authors: Pennsylvania Sanitation Company, author. - Digital Collections - National Library of Medicine Search Results

Start Over Authors Pennsylvania Sanitation Company, author. ✖

1. Water purification

Author(s):: Pennsylvania Sanitation Company, author.
Publication:: [Philadelphia?] : [publisher not identified], [1897?]
Subject(s):: Water Purification -- methods

2. Sewage purification

Author(s):: Pennsylvania Sanitation Company, author.
Publication:: [Philadelphia?] : [publisher not identified], [1897?]
Subject(s):: Sewage
Waste Management