000 00267nam a2200109Ia 4500
008 190829s9999||||xx |||||||||||||| ||und||
100 _aThiruvenkatacharya, V
245 0 _aPopular Astronomy
260 _bS Viswanathan
_aMadras
_c1962
650 _aAstronomy
942 _cBK
999 _c1040
_d1040