000 00300nam a2200133Ia 4500
008 160316s1961 xxu||||| |||| 00| 0 eng d
020 _a
100 _aR. Gupta
245 _aCommercial Mathematics
250 _a6TH
260 _aCALCUTTA
_bACADEMIC PUBLISHERS
_c1961
300 _a525
700 _a
_a
999 _c31896
_d31896