000 00271nam a2200121Ia 4500
008 221118b |||||||| |||| 00| 0 eng d
040 _cBGL
100 _aKumar, R
245 0 _aThree dimensional theory
260 _aN D
_bVardhman
_c2001
300 _a148p
942 _cSAF
999 _c37974
_d37974