費城牛肉芝士三明治 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "費城牛肉芝士三明治" in Chinese language version.

refsWebsite

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1web.archive.org

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gophila.com

Greater Philadelphia Tourism Marketing Corporation. Philadelphia – African American Visitor's Guide and its suburbs (PDF). 21 November 2008 [2012-09-25]. （原始内容 (PDF)存档于2006-12-10）.

web.archive.org

Greater Philadelphia Tourism Marketing Corporation. Philadelphia – African American Visitor's Guide and its suburbs (PDF). 21 November 2008 [2012-09-25]. （原始内容 (PDF)存档于2006-12-10）.