Passenger car fuel economy, EPA and road : a report to the Congress in response to the National Energy Conservation Policy Act of 1978, public law 95-619, title IV, part 1, section 404 / prepared by U.S. Environmental Protection Agency, Office of Air, Noise, and Radiation, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Technology Assessment and Characterization Branch ; principal author, Dillard Murrell.