APA Style

Perloff, R, M. (2017). The dynamics of persuasion : communication and attitudes in the 21st century. Sixth Edition (Sixth Edition). London: Routledge.

MLA Style

Perloff, Richard, M.. "The dynamics of persuasion : communication and attitudes in the 21st century. Sixth Edition". Sixth Edition London: Routledge, 2017. Text.