| 000 | 00363nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 220201s1987 xx 000 0 eng d | ||
| 041 | _aENG | ||
| 100 | _aIS:11972-1987 | ||
| 245 | 0 | _aCODE OF PRACTICE FOR SAFETY PRECAUTIONS TO BE TAKEN WHEN ENTERING A SEWERAGE SYSTEM | |
| 260 |
_aLONDON _bTHAMES AND HUDSON PUBLISHING COMPANY _c1987 |
||
| 300 | _a9 | ||
| 942 | _2ddc | ||
| 999 |
_c62072 _d62072 |
||