APA (7th ed.) Citation

Williams, T. I., & Withers, S. (1969). A biographical dictionary of scientists. Wiley-Interscience.

Chicago Style (17th ed.) Citation

Williams, Trevor Illtyd, and Sonia Withers. A Biographical Dictionary of Scientists. London: Wiley-Interscience, 1969.

MLA (8th ed.) Citation

Williams, Trevor Illtyd, and Sonia Withers. A Biographical Dictionary of Scientists. Wiley-Interscience, 1969.