000 00270nam a2200109Ia 4500
008 231107s1992 xx 000 0 und d
041 _aeng
082 _a692.5
100 _aGajare V.S.
245 _aT.B.of Surveying & Levelling
260 _aPune
_bNirali Prakashan
_c1992
999 _c920957
_d920957