000 00407nam a2200157Ia 4500
008 190328s9999||||xx |||||||||||||| ||und||
020 _a81-7056-047-0
040 _aNITIL
_cNITIL
082 _221st
_a551.1
_bT216P
100 _aTatasth Kumar
245 0 _aPrakriti aur vigyan
_c Tatasth Kumar
260 _aJaipur
_bPanchsheel
_c1989
300 _a103p.
650 _aNature;Science; Cosmology
942 _cBKS
999 _c9849
_d9849