Schwenkhagen, A.F..
Dictionary of Electrical Engineering German-English, English-German / Schwenkhagen A.F.. - London : Sir Isaac Pitman & Sons, Ltd., 1959. - 1058 s.; 20 cm.
Dictionary of Electrical Engineering German-English, English-German / Schwenkhagen A.F.. - London : Sir Isaac Pitman & Sons, Ltd., 1959. - 1058 s.; 20 cm.