APA
Christians C. (., Christians C. (., . (1997). Communication ethics and universal values. London: SAGE Publications.
Chicago
Christians Clifford (Ed), Christians Clifford (Ed), . 1997. Communication ethics and universal values. London: SAGE Publications.
Harvard
Christians C. (., Christians C. (., . (1997). Communication ethics and universal values. London: SAGE Publications.
MLA
Christians Clifford (Ed), Christians Clifford (Ed), . Communication ethics and universal values. London: SAGE Publications. 1997.