Caristi, A. J. (1989). Electronic telephone projects (2nd ed.). BPB Publications.
Chicago-čujuhus (17. p.)Caristi, Anthony J. Electronic Telephone Projects. 2nd ed. New Delhi: BPB Publications, 1989.
MLA-čujuhus (9. p.)Caristi, Anthony J. Electronic Telephone Projects. 2nd ed. BPB Publications, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.