APA
Riffe D., Lacy S. & Fico F. G. (1998). Analyzing media messages : using quantitative content analysis in research. Mahwah, N.J: Lawrence Erlbaum Associates.
Chicago
Riffe Daniel, Lacy Stephen and Fico Frederick G. 1998. Analyzing media messages : using quantitative content analysis in research. Mahwah, N.J: Lawrence Erlbaum Associates.
Harvard
Riffe D., Lacy S. and Fico F. G. (1998). Analyzing media messages : using quantitative content analysis in research. Mahwah, N.J: Lawrence Erlbaum Associates.
MLA
Riffe Daniel, Lacy Stephen and Fico Frederick G. Analyzing media messages : using quantitative content analysis in research. Mahwah, N.J: Lawrence Erlbaum Associates. 1998.