Germs and viruses [videorecording] : a self-defense guide
This basic unit in cleanliness and personal hygiene debunks common misconceptions about micro-organisms. Understand how and why to wash your hands, howto keep a kitchen clean, and how to keep foofsafe. Learn the facts about bacteria, viruses, colds, public washrooms, antibacterial soaps, and the bes...
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| Language: | eng |
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Chicago, IL : Learning Seed,
2006
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