1
Published 1798
Record Source: Published Materials
Subjects and Genres: '; ...Bridges Penn. Schuylkill River....
Book
2
Published 1889
Record Source: Published Materials
Subjects and Genres: '; ...Water-supply Schuylkill River...
Book
3
Published 1817
Record Source: Published Materials
Subjects and Genres: '; ...Steam-navigation Delaware River (N.Y.-Del. and N.J.)...
Book
4
5
Published 1975
Record Source: Published Materials
Subjects and Genres: '; ...Regional planning Delaware River Valley (N.Y.-Del. and N.J.) Periodicals....
Journal
6
7
Published 1907
Record Source: Published Materials
...Susquehanna River Navigation Law and legislation....
Book
8
9
Published 1895
Record Source: Published Materials
...Delaware River Estuary Navigation Law and legislation....
Book
10
Published 1815
Record Source: Published Materials
...Chemung River (N.Y. and Pa.) Navigation....
Book
11
Published 1863
Record Source: Published Materials
...Monongahela River (W. Va. and Pa.)...
Book
12
13
14