000 00285nam a22001331a 4500
020 _a9788130009292
082 _aM 551.483
_bNAD
245 _aNadhikal thadakangal/
260 _aKozhikode:
_bPoorna,
_c2009.
300 _a103p.
650 _aRivers
650 _aScience
942 _cBK
999 _c30158
_d30158