000 00445 a2200181 4500
003 ISURu
005 20240721203553.0
020 _a8176293520
041 _aeng
082 _a338
_bKUM
090 _d47870
100 _aKumar, Sunil
_9120398
245 _aProductivity and factor substitution
_btheory and analysis
260 _aNew Delhi
_bDeep and Deep
_c2001
_g2001
300 _ax,274 p.
942 _cR
999 _c42377
_d47870
945 _dMain Library ADMIN
_c26318