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Creator
- Oregonian (Firm) 9
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- Billings Gazette 2
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- Chicago Daily News, Inc. 1
- Finley, William L. (William Lovell), 1876-1953 1
- Grants Pass Daily Courier 1
- Izaak Walton League of America 1
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Topic
- Sewage disposal plants 19
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Region
- Portland >> Washington County >> Oregon >> United States 13
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- Egypt 2
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