| 000 | 00447cam a22001097a 4500 | ||
|---|---|---|---|
| 008 | 180718b1966 xxu||||| |||| 00| 0 eng d | ||
| 082 | _aP463x42 Un3n | ||
| 245 |
_aNew Problems in school design: middle schools: implication of transfer at 12 or 13 years _cby Deprtment of Education and Science, United Nation |
||
| 260 |
_aLondon _bHer Majesty's Stationery Office _c1966 |
||
| 300 | _a143p. | ||
| 700 | _aUnited Nation. Department of Educatin and Science | ||
| 999 |
_c494676 _d494676 |
||