
Pocket-Book for Railroad and Civil Engineers: Containing New, Exact, and Concise Methods for Laying Out Railroad Curves, Switches, Frog Angles, and Cr
PAYBACK Punkte
9 °P sammeln!
Pocket-Book for Railroad and Civil Engineers: Containing New, Exact, and Concise Methods for Laying Out Railroad Curves, Switches, Frog Angles, and Cr