1
Record Source: Published Materials
Subjects and Genres: '; ...Rivers Pennsylvania...
Book
2
Author: Black, Edgar N.
Published 1877
Record Source: Published Materials
Subjects and Genres: '; ...Flood control Pennsylvania Delaware River....
Book
3
Published 1876
Record Source: Published Materials
Subjects and Genres: '; ...Bridges Delaware River....
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4
5
6
Record Source: Published Materials
Subjects and Genres: '; ...Island Delaware River....
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7
Record Source: Published Materials
Subjects and Genres: '; ...Islands Delaware River....
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8
Published 1897
Record Source: Published Materials
Subjects and Genres: '; ...Islands Delaware River....
Book
9
Published 1889
Record Source: Published Materials
Subjects and Genres: '; ...Water-supply Schuylkill River...
Book
10
Published 1941
Record Source: Published Materials
Subjects and Genres: '; ...Water Pollution Delaware River Watershed (N.Y.-Del.and N.J....
Book
11
Published 1846
Record Source: Published Materials
Subjects and Genres: '; ...Riverine operations Delaware River (N.Y.-Del. and N.J.)....
Book
12
Record Source: Published Materials
...Delaware River...
15
Record Source: Published Materials
...Delaware River...
16
Published 1817
Record Source: Published Materials
Subjects and Genres: '; ...Steam-navigation Delaware River (N.Y.-Del. and N.J.)....
Book
19
Published 1798
Record Source: Published Materials
...Delaware River (N.Y.-Del. and N.J.) Navigation....
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20