| 000 | 00550 a2200193 04500 | ||
|---|---|---|---|
| 001 | 443 | ||
| 008 | 050428s1945 eng d | ||
| 041 | 0 | _aeng | |
| 082 | 0 |
_a625.1 _bW387r |
|
| 100 | 4 | 0 |
_aWebb, Walter L. _957163 |
| 245 | 0 |
_aRailroad construction: _btheory and practice/ _cWalter L. Webb |
|
| 260 | 4 |
_aNew York: _bJohn Wiley & Sons _c1945. |
|
| 300 | 4 | _a924 p. | |
| 650 |
_alogaritmos _957164 |
||
| 650 |
_aferrocarriles _957165 |
||
| 650 |
_aferrocarriles construcción _957166 |
||
| 942 |
_2ddc _cBK |
||
| 999 |
_c1034 _d1034 |
||