Darwin, C., & Peckham, M. (1959). The origin of species: A variorum text. University of Pennsylvania Press.
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芝加哥风格引文
Darwin, Charles, 与 Morse Peckham. The Origin of Species: A Variorum Text. Philadelphia [Pa.]: University of Pennsylvania Press, 1959.
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MLA引文
Darwin, Charles, 与 Morse Peckham. The Origin of Species: A Variorum Text. University of Pennsylvania Press, 1959.
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警告：这些引文格式不一定是100％准确.