4
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|
Locks (Hydraulic engineering) -- Environmental aspects -- Pennsylvania. / https://id.loc.gov/authorities/subjects/sh85077979 https://id.loc.gov/authorities/subjects/sh99005383 https://id.loc.gov/authorities/names/n79022911-781 : United States.
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2017
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1
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6
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Locks (Hydraulic engineering) -- Kentucky -- Barren River (River) -- Management. / https://id.loc.gov/authorities/subjects/sh92001772 https://id.loc.gov/authorities/subjects/sh85011942-781 https://id.loc.gov/authorities/subjects/sh2002007911 : United States.
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2016
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1
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8
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Locks (Hydraulic engineering) -- Kentucky -- Green River (River) -- Management. / https://id.loc.gov/authorities/subjects/sh92001772 https://id.loc.gov/authorities/subjects/sh85057222-781 https://id.loc.gov/authorities/subjects/sh2002007911 : United States.
|
2016
|
1
|
9
|
|
Locks (Hydraulic engineering) Louisiana -- See Also the narrower term Calcasieu Locks (La.)
|
|
1
|
10
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Locks (Hydraulic engineering) -- Middle Atlantic States -- History. / https://id.loc.gov/authorities/subjects/sh85077979 https://id.loc.gov/authorities/subjects/sh85085007-781 https://id.loc.gov/authorities/subjects/sh99005024 : McKelvey, William J.
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1978
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1
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