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Locomotive emission standards : regulatory support document.

[Washington, D.C.] : Office of Mobile Sources, Office of Air and Radiation, U.S. Environmental Protection Agency, 1998. 1998

Report to Congress on railroad emissions : a study based on existing data

United States. Environmental Protection Agency. Office of Mobile Sources. Standards Development and Support Branch, author.
[Ann Arbor (Mich.)] : U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Mobile Sources, Emission Control Technology Division, Standards Development and Support Branch, 1991. 1991