อ้างอิง ของ แอ็มแทร็ก

  1. ↑ National Railroad Passenger Corporation. "Foreword" (PDF). Annual Report Fiscal Year 2011. National Railroad Passenger Corporation. สืบค้นเมื่อ 30 July 2012.
  2. ↑ "Amtrak Fact Sheet". Web.archive.org. 2008-01-20. Archived from the original on 2008-01-20. สืบค้นเมื่อ 2012-11-23.
  3. ↑ "National Fact Sheet: FY 2012" (PDF). Amtrak.com. May 2013. สืบค้นเมื่อ October 14, 2013.
  4. ↑ National Railroad Passenger Corporation. "Basic Amtrak Facts". National Amtrak Facts, FY 2011. National Railroad Passenger Corporation. สืบค้นเมื่อ 30 July 2012.
  5. ↑ Puentes, Robert; Adie Tomer; and Joseph Kane (March 2013). "A New Alignment: Strengthening America's Commitment to Passenger Rail". The Brookings Institution. สืบค้นเมื่อ 27 November 2013.
  6. ↑ "Amtrak Fact Sheet, Fiscal Year 2008 District of Columbia" (PDF). Amtrak Government Affairs. 2008. สืบค้นเมื่อ August 27, 2011. Unknown parameter |month= ignored (help)
  7. ↑ Amtrak History and Archives. Accessed March 6, 2013.
  8. ↑ "Amtrak National Facts". Amtrak. Archived from the original on January 20, 2008. สืบค้นเมื่อ June 12, 2008.
  9. ↑ http://www.amtrak.com/servlet/BlobServer?blobcol=urldata&blobtable=MungoBlobs&blobkey=id&blobwhere=1249232964000&blobheader=application%2Fpdf&blobheadername1=Content-disposition&blobheadervalue1=attachment;filename=Amtrak_ATK-11-133_Record_FY11_Ridership_and_Revenue.pdf
  10. ↑ http://www.amtrak.com/servlet/BlobServer?blobcol=urldata&blobtable=MungoBlobs&blobkey=id&blobwhere=1249232964000&blobheader=application%2Fpdf&blobheadername1=Content-disposition&blobheadervalue1=attachment;filename=Amtrak-Sets-New-Ridership-Record-FY2012-ATK-12-092.pdf

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