Cita APA (7th ed.)

Johnson, E. D. (1973). Communication: An introduction to the history of writing, printing, books, and libraries (4th ed.). Scarecrow Press.

Cita Chicago (17th ed.)

Johnson, Elmer Douglas. Communication: An Introduction to the History of Writing, Printing, Books, and Libraries. 4th ed. Metuchen, N. J: Scarecrow Press, 1973.

Cita MLA (9th ed.)

Johnson, Elmer Douglas. Communication: An Introduction to the History of Writing, Printing, Books, and Libraries. 4th ed. Scarecrow Press, 1973.