The Railroad Taper: The Theory and Application of a Compound Transition Curve Based Upon Thirty-Foot Chords
Lee Perkins
Broschiertes Buch

The Railroad Taper: The Theory and Application of a Compound Transition Curve Based Upon Thirty-Foot Chords

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The Railroad Taper: The Theory and Application of a Compound Transition Curve Based Upon Thirty-Foot Chords