000 00268nam a2200109Ia 4500
008 220201s1962 xx 000 0 eng d
082 _a526.9
_bKAN
100 _aKnetkar, TP
245 0 _aSurveying & levelling vol I
260 _bAV Griha Prakashan
_c1962
942 _2ddc
999 _c71391
_d71391