Afanasev V.S., Dvorkin L.T., Malyshev V.G. Osnovy telefonii. Ch.1. Fizicheskie osnovy telefonii, grazhdanskie i voennye telefonnye apparaty. In Russian/ Afanasiev in.C., Dworkin a.T., Malyshev in.Mr.. of telephony. W.1. physical of telephony, civil and military telephone machines. In Russian, Moscow - landofmagazines.com

TransliterationAfanasev V.S., Dvorkin L.T., Malyshev V.G. Osnovy telefonii. Ch.1. Fizicheskie osnovy telefonii, grazhdanskie i voennye telefonnye apparaty. In Russian

In EnglishAfanasiev in.C., Dworkin a.T., Malyshev in.Mr.. of telephony. W.1. physical of telephony, civil and military telephone machines. In Russian, Moscow

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