ProQuest (Firm) & United States. General Accounting Office. (2007). Railroad bridges and tunnels: Federal role in providing safety oversight and freight infrastructure investment could be better targeted : report to congressional requesters. U.S. General Accounting Office.
Chicago Style (17th ed.) CitationProQuest (Firm) and United States. General Accounting Office. Railroad Bridges and Tunnels: Federal Role in Providing Safety Oversight and Freight Infrastructure Investment Could Be Better Targeted : Report to Congressional Requesters. [Washington, D.C.]: U.S. General Accounting Office, 2007.
MLA (9th ed.) CitationProQuest (Firm) and United States. General Accounting Office. Railroad Bridges and Tunnels: Federal Role in Providing Safety Oversight and Freight Infrastructure Investment Could Be Better Targeted : Report to Congressional Requesters. U.S. General Accounting Office, 2007.