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|---|---|---|---|
| 001 | 11617 | ||
| 008 | 150525s9999 xx 000 0 und d | ||
| 020 | _a1-56052-073-6 | ||
| 100 | _aSam Horn | ||
| 245 | _aConcentration! How To Focus For Success | ||
| 250 | _a0 | ||
| 260 |
_aBoston _bThomson _c1999 |
||
| 650 | _aSuccess - Psychological Aspects | ||
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