000 00335 a2200133 4500
080 _a657.47
_bR 812 P
245 1 _aProblems on costing
_cby Sankar Prosad Roy
250 _a3rd edn.
260 _aCalcutta
_bElora Printers & Publishers
_c1965
650 _aCosting
100 1 _aRoy, Sankar Prosad
300 _a310 p.
901 _a218240
999 _c88073
_d88073