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Ep 1. 2 :M 72 : Proceedings of the Conference on Environmental Modeling and Simulation, April 19-22, 1976, Cincinnati, Ohio / [Wayne R. Ott, editor] ; sponsored by Office of Research and Development and Office of Planning and Management, U.S. Environmental Protection Agency.
Ep 1. 2 :N 63/ 19 : Cost and economic impact analysis of the proposed NOx standards for selected aircraft engines / C.F. Day ; prepared for United States Environmental Protection Agency.
Ep 1. 2 :N 73/ 10 : Methodology to calculate nonroad emission inventories at the county and sub-county level : final report / prepared for: U.S. Environmental Protection Agency ; prepared by: Energy and Environmental Analysis, Inc.
Ep 1. 2 :Oi 5/ 23 : Status of EPA regulatory and research activities affecting oil shale development / T. Thoem [and four others].
Ep 1. 2 :Oi 5/ 24 : Testing of six engine oils in accordance with the "EPA recommended practice for testing, grading and labeling the fuel efficiency of motor vehicle engine oils" / F. Peter Hutchins, Thomas J. Penninga.
Ep 1. 2 :On 1 : On-board diagnostics - second generation (OBD-II) system criteria for alternate-fueled vehicles / prepared by Melvin N. Ingalls ; prepared for Environmental Protection Agency.
Ep 1. 2 :Op 2/ 4 : Operational Characteristics Study : Columbus, Ohio Program / by Glenn Thompson [and four others].
Ep 1. 2 :Op 2/ 5 : Operational characteristics study : instrumentation systems / by Glenn Thompson [and three others].