Barcus, F. E. (1959). Communications content: analysis of the research, 1900-1958: (a content analysis of content analysis).
Cita Chicago (17th ed.)Barcus, Francis Earle. Communications Content: Analysis of the Research, 1900-1958: (a Content Analysis of Content Analysis). Urbana, Illinois, 1959.
Cita MLA (8th ed.)Barcus, Francis Earle. Communications Content: Analysis of the Research, 1900-1958: (a Content Analysis of Content Analysis). 1959.
Atenció: Aquestes cites poden no estar 100% correctes.