000 00305nam a2200121Ia 4500
008 160710s1953 xx 000 0 und d
082 _a537.1 W 48 H
100 _aWHITTAKER,SIR EDMUND
245 _aAETHER AND ELECTRICITY
260 _bTHOMAS NELSON AND SONS LTD
_c1953
300 _a319
942 _2ddc
_cB
999 _c16375
_d16375