United States. National Transportation Safety Board. (1993). Head-on collision between Burlington Northern Railroad freight trains 602 and 603 near Ledger, Montana, on August 30, 1991. National Transportation Safety Board.
Chicago Style (17th ed.) CitationUnited States. National Transportation Safety Board. Head-on Collision Between Burlington Northern Railroad Freight Trains 602 and 603 Near Ledger, Montana, on August 30, 1991. Washington, D.C.: National Transportation Safety Board, 1993.
MLA (9th ed.) CitationUnited States. National Transportation Safety Board. Head-on Collision Between Burlington Northern Railroad Freight Trains 602 and 603 Near Ledger, Montana, on August 30, 1991. National Transportation Safety Board, 1993.
Warning: These citations may not always be 100% accurate.