000 00489nam a2200181Ia 4500
005 20250508153159.0
008 008 250505s9999 xx 000 0 eng d
037 _aReference
040 _aFEDL
_beng
_cFEDL
041 _aeng
_2eng
084 _aB, MAR
_qFEDL
100 _aMarshall Sybil
_956827
245 0 _aExperiment in education
260 _aCambridge
_bCambridge University Press
_c1963
300 _avii,222p.
942 _cREF
_hB, MAR
999 _c1341082
_d1341082