000 00289 a2200121 4500
020 _a978-81-8054-558-0
100 _qGupta,R.L.& Gupta,V.K.
245 _aVitiya lekhankan
260 _aDelhi
_bSultan chand and sons.
_c2009
300 _bS.137p.
650 _2Commerce
942 _2ddc
_cBK
999 _c300440
_d300440