记录引文
APA引文
Porto Editora & Bloco Gráfico. (2010). Portugal. Porto Editora.
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芝加哥风格引文
Porto Editora 与 Bloco Gráfico. Portugal. Porto Editora, 2010.
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MLA引文
Porto Editora 与 Bloco Gráfico. Portugal. Porto Editora, 2010.
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警告：这些引文格式不一定是100％准确.