000 00252nam a2200097Ia 4500
008 220204s9999 xx 000 0 und d
082 _a330(048)(541.4)
_bTEC
245 0 _aTechno economic survey of Bihar. V 1
260 _aDelhi
_bNCAER
_c1959
942 _cBK
999 _c23841
_d23841