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| 003 | NUST - PNEC | ||
| 005 | 20170116180849.0 | ||
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_95591 _aHelsel, Jay D |
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_aMechanical drawing : CAD-communications _cJay D. Hselel |
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| 250 | _a11th ed | ||
| 260 | _cc1990. | ||
| 650 |
_95592 _a Mechanical drawing _xME |
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| 942 |
_2ddc _cBK |
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_c64544 _d64544 |
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