Messner, J. (1960). La cuestión social. Rialp.
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芝加哥风格引文
Messner, Johannes. La Cuestión Social. Madrid: Rialp, 1960.
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MLA引文
Messner, Johannes. La Cuestión Social. Rialp, 1960.
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警告：这些引文格式不一定是100％准确.