000 00298nam a22001337a 4500
003 OSt
008 240206b |||||||| |||| 00| 0 eng d
082 _a522.7
_bK95N
100 _aKrasavtsev,B.
245 _aNatural astronomy
260 _aMir publication
_c1970
300 _a615
942 _2ddc
_cBK
999 _c36798
_d36798