| 000 | 00732cam a22002417a 4500 | ||
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| 003 | CHAP | ||
| 005 | 20220329141655.0 | ||
| 008 | 971013s r 00010 d | ||
| 010 | _a72001 | ||
| 011 | _a72973 | ||
| 035 | _a82530 | ||
| 040 | _cCHAP | ||
| 090 | _aR-1747 | ||
| 110 |
_aBanco Nacional de Comercio Exterior. México _99867 |
||
| 245 | 1 | 3 | _aEl tungsteno y sus productos |
| 500 | _aSobretiro de : Comercio exterior 27 (6,7,9) : 725-738, 865-874, 1131-1140, 1977. 28 (1) : 113-119, 1978 | ||
| 590 |
_aBATCH-UPD _b10 _c20130110 _lUCH01 _h2309 |
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| 590 |
_aCONVERSION _b10 _c20130109 _lUCH01 _h1339 |
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| 650 | 1 | 4 |
_aTungsteno. _9115576 |
| 901 | _aBK | ||
| 942 | _cREIMP | ||
| 949 |
_aR-1747 _bBC _cR _d-36635 _eTS1 _i82530 _si |
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| 999 |
_c72001 _d72001 |
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