Richard A. Thompson. (2000). Telephone switching systems. Boston, MA: AH (Artech House).
Trích dẫn kiểu ChicagoRichard A. Thompson. Telephone Switching Systems. Boston, MA: AH (Artech House), 2000.
MLA citiranjeRichard A. Thompson. Telephone Switching Systems. Boston, MA: AH (Artech House), 2000.
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