APA (7th ed.) Citation

Porter, R., Bynum, W. F., & Browne, E. J. (1981). Dictionary of the history of science. Macmillan.

Chicago Style (17th ed.) Citation

Porter, Roy, W. F. Bynum, and E. J. Browne. Dictionary of the History of Science. London: Macmillan, 1981.

MLA (8th ed.) Citation

Porter, Roy, et al. Dictionary of the History of Science. Macmillan, 1981.