Analysis of information sources in references of the Wikipedia article "谢菲尔德" in Chinese language version.
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值 (帮助) (PDF). Sheffield City Council. [2020-02-15]. (原始内容存档 (PDF)于2020-07-14).|url=
值 (帮助) (PDF). Sheffield City Council. [2020-02-15]. (原始内容存档 (PDF)于2020-07-14).