APA (7th ed.) Citation

Sydor, M., & Stortz, K. (1980). Sources and transports of coal in the Duluth-Superior harbor. Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; Available to the public through the National Technical Information Service.

Chicago Style (17th ed.) Citation

Sydor, M., and Kirby Stortz. Sources and Transports of Coal in the Duluth-Superior Harbor. Duluth, Minn. : Springfield, Va.: Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; Available to the public through the National Technical Information Service, 1980.

MLA (9th ed.) Citation

Sydor, M., and Kirby Stortz. Sources and Transports of Coal in the Duluth-Superior Harbor. Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; Available to the public through the National Technical Information Service, 1980.