000 00312nam a2200133Ia 4500
008 180613s9999||||xx |||||||||||||| ||und||
041 _aen
082 _a541.28
100 _aAGESWARAN R.
245 0 _aPhysical of Theoretival
260 _aSri lanka
_bThe open university
_c1987
300 _a73p.
942 _cSR
999 _c79828
_d79828