The relative cost of operating steam and electric locomotives for switching purposes on the St. Paul railway industry tracks - Havlick, Spenser N,Sanger, John P,Malwitz, R. C,Albee, T. L

The relative cost of operating steam and electric locomotives for switching purposes on the St. Paul railway industry tracks

Воспроизведено в оригинальной авторской орфографии издания 1921 года.

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