000 00370nam a2200145Ia 4500
008 190328s9999||||xx |||||||||||||| ||und||
040 _aNITIL
_cNITIL
082 _221st
_a551.1
_bS531H
100 _aSharan
245 0 _aHamari prithvi
_c Sharan
260 _aNew Delhi
_bPustakayan
_c1988
300 _a45p.
650 _aEarth sciences; Sun; Earth-Rotation
942 _cBKS
999 _c9846
_d9846