000			00349nam a2200145Ia 4500
008			170207s9999 xx 000 0 und d
082			_aPG 530.028 BED-P
100			_aBedford, T G
245			_aPractical physics
260			_bLongmans Green & Company, London
260			_c1926
300			_a425
650			_aPractical physics
942			_cBOOKS
999			_c1880 _d1880