Gaya APA

Botan, C, H., Sommerfeldt, E. (2023). Public relations theory III: in the age of publics . New York: Routledge.

Gaya MLA

Botan, Carl, H.,., Sommerfeldt, Erich,. "Public relations theory III: in the age of publics". New York: Routledge, 2023. Buku.