NLM Digital Collections

Search

Search Constraints

Start Over You searched for: Subjects Water Purification -- standards โœ–Remove constraint Subjects: Water Purification -- standards Authors National Institute of Health (U.S.), author. โœ–Remove constraint Authors: National Institute of Health (U.S.), author.

Search Results

1. Efficiency of standard Army water purification equipment and of diatomite filters in removing cysts of Endamoeba histolytica from water: for official action