APA (7th ed.) Citation

Passfield, R. W. (1989). Technology in transition: The Soo Ship Canal, 1889-1985. National Historic Parks and Sites, Environment Canada.

Chicago Style (17th ed.) Citation

Passfield, Robert W. Technology in Transition: The Soo Ship Canal, 1889-1985. Ottawa: National Historic Parks and Sites, Environment Canada, 1989.

MLA (9th ed.) Citation

Passfield, 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.