APA (7th ed.) Citation

(1997). Proposed new emission standards for nonroad diesel engines. U.S. Environmental Protection Agency, Air and Radiation.

Chicago Style (17th ed.) Citation

Proposed New Emission Standards for Nonroad Diesel Engines. [Washington, D.C.]: U.S. Environmental Protection Agency, Air and Radiation, 1997.

MLA (9th ed.) Citation

Proposed New Emission Standards for Nonroad Diesel Engines. U.S. Environmental Protection Agency, Air and Radiation, 1997.