APA (7th ed.) Citation

Kay, H., Dodd, B., & Sime, M. E. (1968). Teaching machines and programmed instruction. Penguin.

Chicago Style (17th ed.) Citation

Kay, Harry, Bernard Dodd, and M. E. Sime. Teaching Machines and Programmed Instruction. Harmondsworth: Penguin, 1968.

MLA (8th ed.) Citation

Kay, Harry, et al. Teaching Machines and Programmed Instruction. Penguin, 1968.