記錄引文
APA引文
(1921). Postal map of China. Department of the Directorate General of Posts.
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Chicago Style (17th ed.) Citation
Postal Map of China. Department of the Directorate General of Posts, 1921.
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MLA引文
Postal Map of China. Department of the Directorate General of Posts, 1921.
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警告：這些引文格式不一定是100％准確.