00000cam a22000004a 4500 UP-99796217610231925 Buklod 20120308100903.0 m |q d | ta 010726s1959 nyu r |||| u|eng d (iLib)UPD-00183809104 ml NCTS LIBRARY eng TF 205 A46 1959 Allen, Calvin Francis 1851 Railroad curves and earthwork Calvin Francis Allen. 7th ed. New York McGraw-Hill 1959. 235 p. ill. Bound with his Field and office tables; specially applicable to railroads. 4th ed.,rev. [1959] Railroads Curves and turnouts. Railroads Earthwork. Railroad engineering Tables, calculations, etc. Railroads Construction. Allen, Calvin francis 1851. FO Monograph UPD NCTS TF 205 A46 1959 Book