000 00300 a2200133 4500
020 _a9788126411864
041 _aMAL
084 _2Colon Classification
_a∆xM55
100 _aBalakrishnan P K
245 _aNarayanaguru
260 _bDC Books
_c2020
_aKottayam
300 _a358p.
942 _cGEN
999 _c616947
_d616947