Work Conference on Content Analysis & Pool, I. d. S. (1959). Trends in content analysis. University of Illinois Press.
Cita Chicago Style (17a ed.)Work Conference on Content Analysis y Ithiel de Sola Pool. Trends in Content Analysis. Urbana: University of Illinois Press, 1959.
Cita MLA (9a ed.)Work Conference on Content Analysis y Ithiel de Sola Pool. Trends in Content Analysis. University of Illinois Press, 1959.
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