000 00385nam a2200157Ia 4500
008 130223s9999 xx 000 0 und d
080 _a371.2
245 _aOrganization of the school year : A comparative study
260 _aFrance
260 _bUNESCO
260 _c1962
300 _a113 p.
440 _aNo. 43; UNESCO Educational Stu
901 _pS10576
942 _cB
_2udc
999 _c128941
_d128941