| 000 | 00314nam a2200097Ia 4500 | ||
|---|---|---|---|
| 008 | 231107s1992 xx 000 0 und d | ||
| 041 | _aeng | ||
| 100 | _aTempter John | ||
| 245 | _aThe Staircase Design : Studies of Hazards ,falls & safer design | ||
| 260 |
_amassachusettf _bMassachusetts Institute of Technology _c1992 |
||
| 999 |
_c929115 _d929115 |
||