APA (7th ed.) Citation

Ricardo, H. R. S. (1931). Diesel engines. Royal Society of Arts.

Chicago Style (17th ed.) Citation

Ricardo, Harry R. Sir. Diesel Engines. Adelphi, Lodon, Eng.: Royal Society of Arts, 1931.

MLA (9th ed.) Citation

Ricardo, Harry R. Sir. Diesel Engines. Royal Society of Arts, 1931.