| 000 | 00346nam a2200121 4500 | ||
|---|---|---|---|
| 027 |
_aBS 1927 : 1953 _q1953 |
||
| 041 | _aeng | ||
| 942 | _cSD | ||
| 110 | _aBritish Standard Institution, London | ||
| 245 | _aBS 1927 : 1953 : DImensions of circular cone diaphragm loudspeakers | ||
| 260 |
_aLondon _bBritish Standard Institution |
||
| 500 | _aSTD572 | ||
| 999 |
_c172571 _d172571 |
||