| 000 | 00625nam a2200181 a 4500 | ||
|---|---|---|---|
| 005 | 20210219160254.0 | ||
| 008 | 081003s1990 mx r 000 0 spa d | ||
| 035 | _aUPN01000162059 | ||
| 049 | _aUNE | ||
| 080 | _a373.5 (47+57) =20 CON. | ||
| 245 | 0 | 4 | _aThe Conception of general secondary education as a basic component in the unified system of continuos education. |
| 260 |
_aMoscow : _bThe USSR State Committee for Public Education, _c1990. |
||
| 300 | _a25 p. | ||
| 690 | _aEnseñanza secundaria- URSS | ||
| 690 | _aURSS- Enseñanza secundaria | ||
| 710 | 2 | _aURSS. Committee for Public Education. | |
| 905 | _aUNESCO | ||
| 999 |
_c134172 _d134172 |
||