Citazione Stile APA (7a Edizione)

Noll, A. M. (1991). Introduction to telephones & telephone systems (2nd ed.). Artech House.

Citazione stile Chigago Style (17a edizione)

Noll, A. Michael. Introduction to Telephones & Telephone Systems. 2nd ed. Boston: Artech House, 1991.

Citatione MLA (9a ed.)

Noll, A. Michael. Introduction to Telephones & Telephone Systems. 2nd ed. Artech House, 1991.