00298nam a2200133Ia 4500020001800000082000800018100001700026245005000043250000600093260002500099300000700124500000600131650002700137  a1-84557-330-7  a925  aJoseph, Mary 0aGreat Scientists Thomas Edison : A Life Story  a-  aN. DelhibRising Sun  a30  a5  aBiography Of Scientist