APA citiranje

Winther, O. O., & Ray Allen Billington. Transportation frontier: Trans-Mississippi west,1865-1890.

Chicago Edition Citation

Winther, Oscar Osburn, and Ray Allen Billington. Transportation Frontier: Trans-Mississippi West,1865-1890.

MLA citiranje

Winther, Oscar Osburn, and Ray Allen Billington. Transportation Frontier: Trans-Mississippi West,1865-1890.

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