APA (7th ed.) Citation

Hellman, K. H., Piotrowski, G. K., & Schaefer, R. M. (1992). Evaluation of research prototype vehicles equipped with direct injection two-stroke cycle engines: Karl H. Hellman, Gregory K. Piotrowski, Ronald M. Schaefer. U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Mobile Sources, Emission Control Technology Division, Control Technology and Applications Branch.

Chicago Style (17th ed.) Citation

Hellman, Karl H., Gregory K. Piotrowski, and Ronald M. Schaefer. Evaluation of Research Prototype Vehicles Equipped with Direct Injection Two-stroke Cycle Engines: Karl H. Hellman, Gregory K. Piotrowski, Ronald M. Schaefer. Ann Arbor, Michigan: U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Mobile Sources, Emission Control Technology Division, Control Technology and Applications Branch, 1992.

MLA (9th ed.) Citation

Hellman, Karl H., et al. Evaluation of Research Prototype Vehicles Equipped with Direct Injection Two-stroke Cycle Engines: Karl H. Hellman, Gregory K. Piotrowski, Ronald M. Schaefer. U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Mobile Sources, Emission Control Technology Division, Control Technology and Applications Branch, 1992.