Givoni, M., & de Jong, D. (2008). The role of the railways in the future of air transport. ScienceGuide.
Lua i Stíl Chicago (17ú heag.)Givoni, M., agus D. de Jong. The Role of the Railways in the Future of Air Transport. ScienceGuide, 2008.
Lua MLA (9ú heag.)Givoni, M., agus D. de Jong. The Role of the Railways in the Future of Air Transport. ScienceGuide, 2008.
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