记录引文
APA引文
Ayres H. B., Ashe W. W., & Thompson Gilbert. (1904). Land classification map of part of the Southern appalachian region. U. S. Geological Survey.
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芝加哥风格引文
Ayres H. B., Ashe W. W., 与 Thompson Gilbert. Land Classification Map of Part of the Southern Appalachian Region. U. S. Geological Survey, 1904.
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MLA引文
Ayres H. B., et al. Land Classification Map of Part of the Southern Appalachian Region. U. S. Geological Survey, 1904.
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警告：这些引文格式不一定是100％准确.