1
Record Source: Published Materials
Subjects and Genres: '; ...Locks (Hydraulic engineering)...
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2
Record Source: Published Materials
Subjects and Genres: '; ...Locks (Hydraulic engineering)...
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3
Subjects and Genres: '; ...Hydraulic engineering Early works to 1800....
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4
Published 1938
Record Source: Published Materials
Subjects and Genres: '; ...Hydraulic engineering Delaware River History....
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5
Published 1840
Record Source: Published Materials
Subjects and Genres: '; ...Locks (Hydraulic engineering) Pennsylvania....
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6
Record Source: Published Materials
Subjects and Genres: '; ...Locks (Hydraulic Engineering)...
8
Published 1990
Record Source: Published Materials
Subjects and Genres: '; ...Locks (Hydraulic engineering) Pennsylvania Freemansburg....
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9
Author: Harza, Richard D.
Published 1984
Record Source: Published Materials
Subjects and Genres: '; ...Hydraulic engineering Illinois Chicago History....
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10
Author: Roberts, W. Milnor 1810-1881.
Published 1857
Record Source: Published Materials
Subjects and Genres: '; ...Locks (Hydraulic engineering) Ohio River....
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11
Author: Wright, Benjamin, 1770-1842.
Published 1824
Record Source: Published Materials
Subjects and Genres: '; ...Locks (Hydraulic engineering)...
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12
Author: McKelvey, William J.
Published 1978
Record Source: Published Materials
Subjects and Genres: '; ...Locks (Hydraulic engineering) Middle Atlantic States History....
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