APA Style

Ledingham, J, A. (2015). Public relations as relationship management : a relational approach to the study and practice of public relations. Second Edition (Second Edition). New York: Routledge.

MLA Style

Ledingham, John, A.. "Public relations as relationship management : a relational approach to the study and practice of public relations. Second Edition". Second Edition New York: Routledge, 2015. Text.