000 00521nam a2200181Ia 4500
005 20250508150212.0
008 008 250505s9999 xx 000 0 eng d
037 _aTextual
040 _aFEDL
_beng
_cFEDL
041 _aeng
_2eng
084 _a371.2, BRI
_qFEDL
100 _aBriggs Thomas H
_9755993
245 0 _aImproving instruction : Supervision by principals of secondary schools
300 _a587p
650 _aSchool Administration
942 _cTEXL
_h371.2, BRI
999 _c1322357
_d1322357