Cita APA (7th ed.)

Talley, D. (1979). Basic telephone switching systems (2nd ed.). Hayden Book Co.

Cita Chicago (17th ed.)

Talley, David. Basic Telephone Switching Systems. 2nd ed. Rochelle Park, N.J: Hayden Book Co, 1979.

Cita MLA (9th ed.)

Talley, David. Basic Telephone Switching Systems. 2nd ed. Hayden Book Co, 1979.