APA Citation

(1891). Map of the railroad lines of the Pennsylvania system, 1891. [Washington, D.C.?: s.n..

Chicago Style Citation

Map of the Railroad Lines of the Pennsylvania System, 1891. [Washington, D.C.?: s.n., 1891.

MLA Citation

Map of the Railroad Lines of the Pennsylvania System, 1891. [Washington, D.C.?: s.n., 1891.

Warning: These citations may not always be 100% accurate.