Field-Book for Railroad Engineers: Containing Formulae for Laying Out Curves, Determining Frog Angles, Levelling, Calculating Earth-Work, Etc., ... Magnetic Variation, Logarithms, Logarithmic - Couverture souple

Henck, John Benjamin

 
9780282764432: Field-Book for Railroad Engineers: Containing Formulae for Laying Out Curves, Determining Frog Angles, Levelling, Calculating Earth-Work, Etc., ... Magnetic Variation, Logarithms, Logarithmic

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