APA (7th ed.) Citation

Ripper, W., & Kersey, A. T. J. (1950). Heat engines (3d ed.). Longmans, Green.

Chicago Style (17th ed.) Citation

Ripper, William, and A. T. J. Kersey. Heat Engines. 3d ed. London, New York: Longmans, Green, 1950.

MLA (9th ed.) Citation

Ripper, William, and A. T. J. Kersey. Heat Engines. 3d ed. Longmans, Green, 1950.