000 00264nam a22001217a 4500
999 _c157967
_d157967
082 _a
_b
100 _aB D Bhatt
245 _aEducational supervision/
_cby B D Bhatt.
260 _aNew Delhi:
_bKanishka,
_c1992.
300 _a383p.
650 _a
942 _cBK