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| 005 | 20151110061108.0 | ||
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| 020 | _a92-3-001228-9 | ||
| 040 |
_aKYUCL _cKYUC |
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| 041 | _aEN | ||
| 050 |
_aT10 _b.6US 1975 |
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| 245 |
_aWorld Guide toTechnical Information And Documentation Services _cby Unesco,. |
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| 250 | _aSecond edition | ||
| 260 |
_aParis, _bThe Unesco Press, _c1975. |
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| 300 | _a515p. | ||
| 942 |
_2lcc _cLLB |
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| 999 |
_c2338 _d2338 |
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