000			00314nam a2200121Ia 4500
008			210324s1956 xx 000 0 und d
082			_a531 _bHER
100			_aHertz, H. _9299283
245			_aPrinciples of mechanics presented in new form.
260			_c1956
650			_aPhysics _9299284
700			_aN.A. _9299285
999			_c266976 _d266976