Hardenberg, H. O. (1999). The middle ages of the internal-combustion engine, 1794-1886 / Horst O. Hardenberg. Society of Automotive Engineers.
Chicago Edition CitationHardenberg, Horst O. The Middle Ages of the Internal-combustion Engine, 1794-1886 / Horst O. Hardenberg. Warrendale, Pa.: Society of Automotive Engineers, 1999.
MLA Edition CitationHardenberg, Horst O. The Middle Ages of the Internal-combustion Engine, 1794-1886 / Horst O. Hardenberg. Society of Automotive Engineers, 1999.
Warning: These citations may not always be 100% accurate.