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| 005 | 20220816091340.0 | ||
| 008 | 180710s9999 xx 000 0 und d | ||
| 020 | _a249597 | ||
| 082 |
_a16.5 _bSRI _223 |
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| 100 | _aSri Lanka Scientific & Technical Information Centre | ||
| 245 | _aUnion catalogue of scientific & technical books, vols 11 & 12, 1987 & 1988. | ||
| 260 |
_aColombo _bSri Lanka Scientific & Technical Information Centre, Natural _c0 |
||
| 300 | _a366 p. | ||
| 942 | _cPR | ||