000			00232nam a2200097 4500
999			_c337580 _d337580
082			_a526.9 _bPUN.S.3
100			_aPunmia,B.C.et al
245			_aSurveying Vol. 111 _cPunmia,B.C.et al
260			_aBangalore _c1990 _bLaxmi
942			_cBK