000 00312nam a2200133Ia 4500
005 20260205050629.0
008 260111s9999||||xx |||||||||||||| ||und||
082 _a338.954 Su81S
100 _aSushil
245 0 _aSystems approach to national
260 _aDelhi
_bAnmol
_c1989
300 _a356p.
942 _cBK
999 _c82924
_d82924