000 00339nam a2200145Ia 4500
005 20260205102610.0
008 260111s9999||||xx |||||||||||||| ||und||
082 _a500 K25V
100 _aKeen,Martin L.
245 0 _aVigyan ke khel(H )
260 _aDelhi
_bShiksha Bharti
_c1961
300 _a48p.
690 _aScience
942 _cBK
999 _c248567
_d248567