Obert, E. F. (1973). Internal combustion engines and air pollution. Intext educational publishers.
Chicago Edition CitationObert, Edward F. Internal Combustion Engines and Air Pollution. New York: Intext educational publishers, 1973.
MLA Edition CitationObert, Edward F. Internal Combustion Engines and Air Pollution. Intext educational publishers, 1973.
Warning: These citations may not always be 100% accurate.