000 00309nam a22000977a 4500
008 240702s1971 ru ||||| |||| 00| 0 eng d
100 _aShilov, P. I.
_9296899
245 _aSurveying /
_c[by] P. I. Shilov.
264 _aMoscow :
_bHigher School Publishing House,
_c1971.
653 _aასტრონომია
999 _c762049
_d762047