Matches in Library of Congress for { ?s ?p Pictures and simple text tell how a stream in a natural state, filters out impurities like mud, leaves, bugs, and other things.. }
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- 60008257%2FL%2FAC%2Fr903 abstract "Pictures and simple text tell how a stream in a natural state, filters out impurities like mud, leaves, bugs, and other things.".
- 60008257%2FL%2FAC%2Fr903 description "Pictures and simple text tell how a stream in a natural state, filters out impurities like mud, leaves, bugs, and other things.".