Citazione Stile APA (7a Edizione)

RAUM ELIZABETH. (2019). THE HISTORY OF TELEPHONE (2018 Ed.). HEINEMANN LIBRARY.

Citazione stile Chigago Style (17a edizione)

RAUM ELIZABETH. THE HISTORY OF TELEPHONE. 2018 Ed. MINNESOTA: HEINEMANN LIBRARY, 2019.

Citatione MLA (9a ed.)

RAUM ELIZABETH. THE HISTORY OF TELEPHONE. 2018 Ed. HEINEMANN LIBRARY, 2019.