000 00268nam a22001097a 4500
082 _a500/RAJ
100 _aRajan,Dr.Y.S.
_981719
245 _aNature,Science & Modern Life
260 _aDelhi
_bOcean Books Pvt.Ltd
_c2019
650 _aNature Science
_981720
942 _cBK
999 _c65877
_d65877