Formats: Moving image / Subjects: Drinking / Copyright: Public domain - Digital Collections - National Library of Medicine Search Results

Start Over Formats Moving image ✖ Subjects Drinking ✖ Copyright Public domain ✖

1. Purification of water

Publication:: [Washington, DC] : War Office, 1943
Subject(s):: Water Purification -- methods
Drinking
Military Personnel -- education
Warfare
Water Pollution