记录引文
APA引文
Portugal Instituto Geográfico e Cadastral. (1972). Carta corográficade Portugal. I.G.C.
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芝加哥风格引文
Portugal Instituto Geográfico e Cadastral. Carta corográficade Portugal. I.G.C, 1972.
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MLA引文
Portugal Instituto Geográfico e Cadastral. Carta corográficade Portugal. I.G.C, 1972.
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警告：这些引文格式不一定是100％准确.