Cita APA (7th ed.)
Obert, E. F., & Jennings, B. H. (1968). Internal combustion engines (3d ed.). International Textbook Co.
Cita Chicago (17th ed.)
Obert, Edward F., i Burgess Hill Jennings. Internal Combustion Engines. 3d ed. Scranton: International Textbook Co, 1968.
Cita MLA (9th ed.)
Obert, Edward F., i Burgess Hill Jennings. Internal Combustion Engines. 3d ed. International Textbook Co, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.