000 00299nam a2200121 4500
082 _a370
_bCAL.S
084 _2Colon Classification
100 _aCallahan
245 _aSuccessful teaching in secondary schools /
_cby Callahan
260 _bEurasia PUB,
_c1965.
650 _aEducation
942 _cBK
999 _c682229
_d682229