TY - BOOK AU - CLARK JOHN O E TI - TIMELINES OF SCIENCE & TECHNOLOGY- THE AGE OF ELECTRICITY VOL-7 ( र्उऎ.र्कऎ.163 ) U1 - 500 PY - 2006/// PB - BROWN REFERENCE COMPANY KW - TIMELINES OF SCIENCE & TECHNOLOGY- THE AGE OF ELECTRICITY VOL-7 ( र्उऎ.र्कऎ.163 ) N2 - 1885- 1919 ( बा.वि.क.क्र.231 ) ER -