621.31 GRA 1671 1656 1672 1673 1674 1689 1690 1691
Graham, Frank D. Audels new electric library / by Frank D. Graham. - 3rd ed.. - Bombay : D.b. Taraporevala, 1970 4v. : ill. . - (Dedicated to electrical progress ) Includes indezx Rs.3.75 * Electrical engineering Engineering mechanics. * Series
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