000			003370000a22001570004500
003			BGCL
020			_c9.00
040			_aBGCL
082			_a530 _bPhy 147.4
245			_aLight for Degree Students _cby K.D.Roy
260			_aCalcutta _bIndian Book Concern _c1969
650			_aPHY.
041			_aeng
700			_aRoy, K.D.
942			_cBOOK
999			_c7938 _d7938