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| 999 |
_c169301 _d169300 |
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| 005 | 20230125093823.0 | ||
| 008 | 230125b ||||| |||| 00| 0 eng d | ||
| 082 |
_223 _a370.5 _bBUL |
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| 245 | _aBulletin of the International Bureau of Education no. 250-257, 1990 | ||
| 260 |
_aParis _bUnesco _c1990 |
||
| 362 | _a1 Jan,1989-31 Dec,1990 | ||
| 509 | _aNS | ||
| 942 | _cPRBP | ||