| 000 | 005030000a22001690004500 | ||
|---|---|---|---|
| 999 |
_c65782 _d65782 |
||
| 027 |
_aSLS 690 _q1985 |
||
| 041 | _aeng | ||
| 942 | _cSD | ||
| 110 | _aSri Lanka Standards Institution, Colombo Lk | ||
| 245 | _aSLS 690 : pt 1 : 1985 : Graphical symbols used in electrotechnology, pt.1 - Architectural and installations diagrams. | ||
| 260 |
_aColombo _bSLSI _c1985 |
||
| 300 | _a13 p. | ||
| 500 | _aSTD2875 | ||
| 650 | _aa003.62:621.3 | ||
| 650 | _aSRI LANKA-STANDARDS | ||
| 650 | _aSTANDARDS-SRI LANKA | ||