| 000 | 00382nam a2200169Ia 4500 | ||
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| 005 | 20250114191402.0 | ||
| 008 | 250113s9999 xx 000 0 und d | ||
| 041 | _aeng | ||
| 082 |
_bK9 _aR8b4 |
||
| 100 | _aChurchman C. | ||
| 245 | _aSystems approach | ||
| 260 |
_c1979 _bDelta Book _aNew York |
||
| 300 | _axi, 243p | ||
| 365 | _cRs. | ||
| 650 | _aR8b4 | ||
| 700 | _aChurchman C. | ||
| 999 |
_c73309 _d73309 |
||