000 00268nam a2200109Ia 4500
008 191024s9999||||xx |||||||||||||| ||und||
100 _aRangarajan K
245 0 _aRasayanik Vigyan
260 _bMaithrey Publications
_aNew Delhi
_c2003
650 _aScience
942 _cBK
999 _c54802
_d54802