| 000 | 00426nam a2200157Ia 4500 | ||
|---|---|---|---|
| 005 | 20250913131719.0 | ||
| 008 | 250913s9999||||xx |||||||||||||| ||und|| | ||
| 041 | _aEnglish | ||
| 100 | _aDemidova, S. I. | ||
| 245 | 0 | _aInnovations in Science and Mathematics Education in Schools in the Soviet Union | |
| 260 |
_bUNESCO, _c1987 |
||
| 300 |
_a22p.; _c29cm |
||
| 650 | _aReport | ||
| 700 | _aRazumovskii, V. G. | ||
| 942 | _cRP | ||
| 999 |
_c155025 _d155025 |
||