000 00291nam a2200121Ia 4500
008 220201s1972 xx 000 0 eng d
082 _a516.24
_bBAN
100 _aBANSIL(PC)
245 0 _aNews Elementory plane trigonometry .
260 _bAtmaram and sons
_c1972
300 _a438
942 _2ddc
999 _c928
_d928