000 00428nam a2200157Ia 4500
999 _c14951
_d14951
005 20211228102247.0
008 180712s9999 xx 000 0 und d
020 _a9231013076
082 _a374.4
_bERD
_223
100 _aErdos, Renee F.
245 _aEstablishing an institution teaching by correspondence
_c/ Renee F. Erdos
260 _aParis
_bThe Unesco press
_c1975
300 _a58 p.
650 _aEducation
942 _cS