000 00621nam a22001937a 4500
999 _c4797
_d4797
003 OSt
005 20200128154951.0
008 181211b ||||| |||| 00| 0 eng d
040 _aOSt
_benglish
_cOSt
_dOSt
082 _a375.058 / R311w
110 _aNational Education Association
_b
_9279852
245 _aResearch for curriculum improvement :
_b1957 yearbook.
260 _aWashington D. C. :
_bAssociation for Supervision and Curriculum Development,
_cc 1957.
300 _ax, 350 p. :
_bill. ;
_c24 cm.
508 _a314
650 _aProgrammes Research.
_9152487
650 _aCurriculum.
_9159981
942 _2ddc
_cBK