APA (7th ed.) Citation

Ripper, W., & Kersey, A. T. J. (1939). Ripper's Heat engines (New ed.). Longmans, Green.

Chicago Style (17th ed.) Citation

Ripper, William, and A. T. J. Kersey. Ripper's Heat Engines. New ed. London, New York: Longmans, Green, 1939.

MLA (9th ed.) Citation

Ripper, William, and A. T. J. Kersey. Ripper's Heat Engines. New ed. Longmans, Green, 1939.