Passfield, R. W. (1989). Technology in transition: The Soo Ship Canal, 1889-1985. National Historic Parks and Sites, Environment Canada.
Chicago Style (17th ed.) CitationPassfield, Robert W. Technology in Transition: The Soo Ship Canal, 1889-1985. Ottawa: National Historic Parks and Sites, Environment Canada, 1989.
MLA (9th ed.) CitationPassfield, Robert W. Technology in Transition: The Soo Ship Canal, 1889-1985. National Historic Parks and Sites, Environment Canada, 1989.
Warning: These citations may not always be 100% accurate.