Gil Held. (1995). Data communications: A comprehensive approach. New York: McGraw-Hill.
Trích dẫn kiểu ChicagoGil Held. Data Communications: A Comprehensive Approach. New York: McGraw-Hill, 1995.
Deismireacht MLAGil Held. Data Communications: A Comprehensive Approach. New York: McGraw-Hill, 1995.
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