Bond, R. C., & Nock, O. S. (1975). 150 years of uninterrupted progress in railway engineering. London: Mechanical Engineering Publications.
Παραπομπή Chicago StyleBond, R. C., and O. S. Nock. 150 Years of Uninterrupted Progress in Railway Engineering. London: Mechanical Engineering Publications, 1975.
Παραπομπή MLABond, R. C., and O. S. Nock. 150 Years of Uninterrupted Progress in Railway Engineering. London: Mechanical Engineering Publications, 1975.
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