U.S. Department of Health & Human Services

NLM Digital Collections

Search

Search Constraints

Start Over You searched for: Subjects Water Purification -- standards Remove constraint Subjects: Water Purification -- standards
Number of results to display per page

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

nlm:nlmuid-14110530R-bk