| 000 | 00341nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 210422s9999 xx 000 0 und d | ||
| 020 | _a968-16-2536-6 | ||
| 041 | _aESPAÑOL | ||
| 082 |
_a _b |
||
| 100 | _aRIO, FERNANDO DEL | ||
| 245 | 0 |
_aCOSAS DE LA CIENCIA _b |
|
| 260 |
_aMEXICO _bSECRETARIA DE EDUCACION PUBLICA _c1987 |
||
| 942 | _cBK | ||
| 999 |
_c37955 _d37955 |
||