| 000 | 003400000a22001330004500 | ||
|---|---|---|---|
| 245 | _aAutomatic warning system | ||
| 110 | _aBritish Transport Commission | ||
| 260 |
_aLondon _bBritish Transport Commission _c[n.d.] |
||
| 300 | _a16p. : ill. | ||
| 080 |
_a656.2 _bB7 |
||
| 650 | _aRAILROAD TRANSPORTATION | ||
| 041 | _aEN | ||
| 942 | _cBK | ||
| 999 |
_c43161 _d43161 |
||