000 00271nam a2200121Ia 4500
100 _aUmmerkutty, A N P
020 _a81.237.0468.2
942 _cBK
245 _aScience of the ocean
260 _aNational book trust, India
_c1907
082 _a551.46 Umm
300 _a138
999 _c46897
_d46897