000 00308nam a2200121Ia 4500
008 191024s9999||||xx |||||||||||||| ||und||
020 _a8188473057
100 _aRamnika Radhe Thung
245 0 _aRasayan Vigyan Sahaj Bodh
260 _bArunoday Prakashan
_aNew Delhi
_c2003
650 _aScience
942 _cBK
999 _c54799
_d54799