000 00257nam a2200109Ia 4500
008 190829s9999||||xx |||||||||||||| ||und||
100 _aKhanna, M L
245 0 _aSpherical Astronomy
260 _bJaiprakash
_aMeerat
_c1962
650 _aAstronomy
942 _cBK
999 _c1071
_d1071