| 000 | 00610cam a2200241 4500 | ||
|---|---|---|---|
| 008 | 090401t1986 xxu||||| |||| 00| 0 eng d | ||
| 020 | _a0860172643 | ||
| 035 | _a(Sirsi) u47874 | ||
| 041 | _aeng | ||
| 050 | _a624.152 | ||
| 100 | _aMacKay, E.B. | ||
| 245 | _aProprietary trench support systems | ||
| 250 | _a3rd ed. | ||
| 260 |
_aLondon _bConstruction Industry Research and Infor _c1986 |
||
| 300 | _a26p. : ill. ; 30cm. | ||
| 350 | _a3 | ||
| 490 |
_aCIRIA Technical Note _v95 |
||
| 650 | _aEXCAVATIONS | ||
| 650 | _aSUPPORT SYSTEMS | ||
| 650 | _aTRENCHES | ||
| 942 | _n0 | ||
| 948 | _c04/03/1997 | ||
| 999 |
_c92231 _d92231 |
||