Railroad Information Service & Map Link (Firm). (1996). Railroads of the continental United States: An integral part of global transportation. Map Link.
Chicago Style (17th ed.) CitationRailroad Information Service and Map Link (Firm). Railroads of the Continental United States: An Integral Part of Global Transportation. Santa Barbara, CA: Map Link, 1996.
MLA (9th ed.) CitationRailroad Information Service and Map Link (Firm). Railroads of the Continental United States: An Integral Part of Global Transportation. Map Link, 1996.
Warning: These citations may not always be 100% accurate.