000			00295nam a2200145Ia 4500
100			_aShilov/P.I
650			_aGeneral
942			_cBK
654			_asurveying
245			_aSurveying
260			_bHigher School Publishing House _c1971
082			_a624
300			_a460
546			_aENGLISH
999			_c30048 _d30048