000 00269nam a22001217a 4500
999 _c156894
_d156894
082 _a
_b
100 _aKumar Sinha
245 _aEducation /
_cby Kumar Sinha.
260 _aNew Delhi:
_bCommonwealth Publishers
_c1995.
300 _a223p.
650 _a
942 _cBK