000 00257nam a22001097a 4500
082 _a741.642
100 _aRoy, Biman Chandra
_922643
245 _aGalileo Thro Telescope
260 _akolkata
_bBest Books
_c2012
650 _aChildren
_980414
942 _cBK
999 _c63783
_d63783