1
Subjects and Genres: '; ...Railroads Design and construction Pennsylvania....
Book
2
Author: Richards, Joseph T.
Published 1898
Record Source: Published Materials
Subjects and Genres: '; ...Pennsylvania Railroad....
Book
3
Published 1857
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Design and construction Costs Pennsylvania....
Book
4
Published 1857
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Design and construction Costs Pennsylvania....
Book
6
Author: Faries, Robert.
Published 1851
Record Source: Published Materials
Subjects and Genres: '; ...Allegheny Portage Railroad....
Book
7
Published 1839
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Design and construction Pennsylvania....
Serial
8
Published 1855
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Pennsylvania Design and construction....
Book
9
Published 1839
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Design and construction Costs Pennsylvania....
Book
10
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Design and construction Pennsylvania....
Serial
11
Published 1858
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Design and construction Pennsylvania....
Serial
12
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Design and construction Pennsylvania....
Serial
13
Published 1858
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Design and construction Pennsylvania....
Serial
14
Published 1854
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Pennsylvania Design and construction....
Book
15
Published 1839
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Design and construction Costs Pennsylvania....
Book
16
Published 1853
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Design and construction Costs Pennsylvania....
Book
17
Author: Fernon, Thomas S. 1818-1896.
Published 1855
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Pennsylvania Design and construction....
Book
18
Author: Fernon, Thomas S. 1818-1896.
Published 1856
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Pennsylvania Design and construction....
Book
19
Author: Fernon, Thomas S. 1818-1896.
Published 1856
Record Source: Published Materials
Subjects and Genres: '; ...Railroads Costs Pennsylvania Design and construction....
Book
20
Record Source: Published Materials
Subjects and Genres: '; ...Railroad bridges Pennsylvania Philadelphia...