MLA

Hargie, Owen. Skilled Interpersonal Communication : Research, Theory and Practice. 6th ed. Oxon: Routledge, 2017.

APA

Hargie, O. (2017). Skilled interpersonal communication : research, theory and practice. 6th ed. Oxon: Routledge.

Chicago

Hargie, Owen, Skilled Interpersonal Communication: Research, Theory and Practice. 6th ed. Oxon: Routledge, 2017.