APA (7th ed.) Citation

Obert, E. F. (1969). Internal combustion engines (3. ed., print.). Internat. Textbook Co.

Chicago Style (17th ed.) Citation

Obert, Edward Frederic. Internal Combustion Engines. 3. ed., print. Scranton, Pa: Internat. Textbook Co, 1969.

MLA (9th ed.) Citation

Obert, Edward Frederic. Internal Combustion Engines. 3. ed., print. Internat. Textbook Co, 1969.