Philips. (1973). Transmitting tubes for communication. Tubes for R.F. Heating. PB2/500-TBW15/125. Philips.
Cita Chicago Style (17a ed.)Philips. Transmitting Tubes for Communication. Tubes for R.F. Heating. PB2/500-TBW15/125. Philips, 1973.
Cita MLA (8a ed.)Philips. Transmitting Tubes for Communication. Tubes for R.F. Heating. PB2/500-TBW15/125. Philips, 1973.
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