| 000 | 00496nam a2200169 a 4500 | ||
|---|---|---|---|
| 005 | 20210219161449.0 | ||
| 008 | 081109s1955 mx r 000 0 spa d | ||
| 035 | _aUPN01000185572 | ||
| 049 | _aUNE | ||
| 080 | _a372.83 (100) =20 "1955" SOC No. 2 | ||
| 245 | 0 | 4 | _aThe social sciences in secondary schools. |
| 260 |
_aParis : _bUNESCO _c1955. |
||
| 300 | _a60 p. | ||
| 440 | 0 |
_aReports and papers in the social sciences ; _v4 |
|
| 690 | _aInvestigacion en ciencias sociales | ||
| 905 | _aUNESCO | ||
| 999 |
_c157675 _d157675 |
||