(1967). Master plan report: Chicago metropolitan area (Rev. ed.). United Air Lines.
Chicago Style (17th ed.) CitationMaster Plan Report: Chicago Metropolitan Area. Rev. ed. [Chicago?]: United Air Lines, 1967.
MLA (8th ed.) CitationMaster Plan Report: Chicago Metropolitan Area. Rev. ed. United Air Lines, 1967.
Warning: These citations may not always be 100% accurate.