000 00295nam a2200121Ia 4500
082 _aRef. 540 P22s 1992 [Vol.4]
245 0 _aScience discoveries : Thomas Edison and electricity
260 _aLondon
260 _bHarper - Collins Publishers
260 _c1992
300 _a32
490 _v[Vol.4]
999 _c8884
_d8884