Water quality and purification: resource material for teachers
Adapted from ch.6 of "Teacher's study guide on the biology of human populations", UNESCO, Paris, 1975
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| Main Authors: | , |
|---|---|
| Format: | programme and meeting document biblioteca |
| Language: | eng |
| Subjects: | Water quality, Water treatment, Water sampling, Guides, Waste water, Saline water, Pollutants, UNESCO/UNICEF Programme of Educational Assistance, |
| Online Access: | https://unesdoc.unesco.org/ark:/48223/pf0000057328 |
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