000			00318nam a2200133Ia 4500
008			130629s9999 xx 000 0 und d
082			_a521.54 KUM-A
100			_aKumaravelu, S;N Susheela Kumaravelu
245			_aAstronomy
260			_bAuthor _c1993 _aNagarcoil
300			_a572
650			_aPhysics
942			_cBK
999			_c22500 _d22500