Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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