APA-viite (7. p.)
Ogburn, C., Sugar, J. A., & Grosvenor, G. M. Railroads: The Great American Adventure. National Geographic Society, Special Publications Division.
Chicago-viite (17. p.)
Ogburn, Charlton, James A. Sugar, ja Gilbert M. Grosvenor. Railroads: The Great American Adventure. Washington, EUA: National Geographic Society, Special Publications Division.
MLA-viite (9. p.)
Ogburn, Charlton, et al. Railroads: The Great American Adventure. National Geographic Society, Special Publications Division.
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