APA (7th ed.) Citation

(1979). Portland study interim analysis: Update with nine months of vehicle operation. Emission Control Technology Division, Office of Mobile Source Air Pollution Control, Office of Air, Noise, and Radiation, U.S. Environmental Protection Agency.

Chicago Style (17th ed.) Citation

Portland Study Interim Analysis: Update with Nine Months of Vehicle Operation. [Ann Arbor, Mich.]: Emission Control Technology Division, Office of Mobile Source Air Pollution Control, Office of Air, Noise, and Radiation, U.S. Environmental Protection Agency, 1979.

MLA (9th ed.) Citation

Portland Study Interim Analysis: Update with Nine Months of Vehicle Operation. Emission Control Technology Division, Office of Mobile Source Air Pollution Control, Office of Air, Noise, and Radiation, U.S. Environmental Protection Agency, 1979.