| 000 | 00524nam a2200181 a 4500 | ||
|---|---|---|---|
| 005 | 20210219152726.0 | ||
| 008 | 991125n dis 000 0 spa u | ||
| 035 | _aUPN01000059610 | ||
| 245 | _aBOLETIN MENSUAL DE LA DIRECCION GENERAL DE ENSEÑANZA AGRICOLA | ||
| 260 | _aDistrito Federal, México | ||
| 362 | _a1948 (1,2,3,4,5,6) | ||
| 362 | _a1949 2 (5,6,7,8,10,11) | ||
| 362 | _a1950 3 (1,2,3,4,5,8,9,10) | ||
| 362 | _a1951 4 (4,6,8,10,11) | ||
| 362 | _a1952 5 (1,2,3) | ||
| 904 |
_aAC _b000342 |
||
| 905 | _aRevista | ||
| 999 |
_c59543 _d59543 |
||