000 00309cam a22001331 4500
082 _a625.1
_bHAY
100 1 _aHay, William Walter,
245 0 0 _aRailroad engineering.
260 _aNew York,
_bWiley
_c[1953-
300 _a v.
_billus.
_c24cm.
650 0 _aRailroad engineering.
650 0 _aMCE
942 _cBK
999 _c7565
_d7565