"valkenburgh, van . "
basic electronics part 6:the new model illustrated course of: elementary technician training/ van.. valkenburgh - 2 ed. - usa : the technical press 1961. - ", 0p.; 25 cm."
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621. 381 val
basic electronics part 6:the new model illustrated course of: elementary technician training/ van.. valkenburgh - 2 ed. - usa : the technical press 1961. - ", 0p.; 25 cm."
--
621. 381 val