Ojeda Zabala, N. I. (2007). The railroad and the lineal structure, Bogotá 1889-1938. Universidad Católica de Colombia.
Čikaški stil citiranjaOjeda Zabala, Nancy Isabel. The Railroad and the Lineal Structure, Bogotá 1889-1938. Universidad Católica de Colombia, 2007.
MLA način citiranjaOjeda Zabala, Nancy Isabel. The Railroad and the Lineal Structure, Bogotá 1889-1938. Universidad Católica de Colombia, 2007.
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