Railroard curves and earthwork
Allen, Calvin Frank 1851-
Railroard curves and earthwork by C.F. Allen - 211 hojas + diag.
Manuscrito
Ferrocarriles.
Ingeniería ferroviaria.
TF205 / A46
Railroard curves and earthwork by C.F. Allen - 211 hojas + diag.
Manuscrito
Ferrocarriles.
Ingeniería ferroviaria.
TF205 / A46