SARGENT, L. T. (1987). Contemporary Political Ideologies A Comparative Analysis Lyman Tower Sargent. The Dorsey Press.
Lua i Stíl Chicago (17ú heag.)SARGENT, Lyman Tower. Contemporary Political Ideologies A Comparative Analysis Lyman Tower Sargent. The Dorsey Press, 1987.
Lua MLA (8ú heag.)SARGENT, Lyman Tower. Contemporary Political Ideologies A Comparative Analysis Lyman Tower Sargent. The Dorsey Press, 1987.
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