000 00329nam a22001451a 4500
020 _a9788171309658
082 _aM 523.1
_bKES/P
100 _aKesavan Nair P
245 _aPrapanjam/
_cby Kesavan Nair P
260 _aKottayam:
_bD C Books,
_c1999.
300 _a223p.
650 _aUniverse
650 _aScience
942 _cBK
999 _c35599
_d35599