NLM Digital Collections

Search

Search Constraints

Start Over You searched for: Formats Text Remove constraint Formats: Text Subjects Water Purification -- standards Remove constraint Subjects: Water Purification -- standards Publication Year 1944 Remove constraint Publication Year: 1944

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