Purification of Water
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41 Danger of drinking polluted water; methods of purifying water under various conditions. 1950
Complete catalog record
Film number: TF 8-1174
Type: Motion Picture
Type: Motion Picture
Sources
- 3434 U.S. Government Films — title, year, creator, length, format, description, catalog record
Record added 2026-07-13 14:19:23