Caristi, A. J. (1989). Electronic telephone projects (2nd ed.). BPB Publications.
Dyfyniad Arddull ChicagoCaristi, Anthony J. Electronic Telephone Projects. 2nd ed. New Delhi: BPB Publications, 1989.
Dyfyniad MLACaristi, Anthony J. Electronic Telephone Projects. 2nd ed. BPB Publications, 1989.
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