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1
Published 1831
Subjects and Genres: ';
“...Railroads Design and construction Maryland....”
Record Source:
Published Materials
Book
2
Subjects and Genres: ';
“...Allegheny Portage Railroad....”
Book
3
Published 1839
Subjects and Genres: ';
“...Railroads Design and construction Pennsylvania....”
Record Source:
Published Materials
Serial
4
Published 1828
Subjects and Genres: ';
“...Railroads Design and construction Maryland....”
Record Source:
Published Materials
Serial
5
Published 1839
Subjects and Genres: ';
“...Railroads Design and construction Costs Pennsylvania....”
Record Source:
Published Materials
Book
6
Published 1831
Subjects and Genres: ';
“...Railroads Design and construction Maryland....”
Record Source:
Published Materials
Book
7
Subjects and Genres: ';
“...Railroads Cars Design and construction....”
Book