Dyfyniad APA

Noll, A. M., & Artech house. (1986). Introduction to Telephones and Telephone System. Artech House.

Dyfyniad Arddull Chicago

Noll, A Michael, and Artech house. Introduction to Telephones and Telephone System. Norwood: Artech House, 1986.

Dyfyniad MLA

Noll, A Michael, and Artech house. Introduction to Telephones and Telephone System. Artech House, 1986.

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