Railroad curves and earthwork,
Allen, C. Frank
Railroad curves and earthwork, by C. Frank Allen ... - 7th ed., rev. - New York, London, McGraw-Hill Book Company, inc., 1931. - xiii, 235 p. diagrs. 18 cm.
Railroads--Curves and turnouts.
Railroads--Earthwork.
MCE
625.12 / ALL
Railroad curves and earthwork, by C. Frank Allen ... - 7th ed., rev. - New York, London, McGraw-Hill Book Company, inc., 1931. - xiii, 235 p. diagrs. 18 cm.
Railroads--Curves and turnouts.
Railroads--Earthwork.
MCE
625.12 / ALL