Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Williams, Trevor Illtyd, y Sonia Withers. A Biographical Dictionary of Scientists. Londres: Black, 1969.

Cita MLA (8a ed.)

Williams, Trevor Illtyd, y Sonia Withers. A Biographical Dictionary of Scientists. Black, 1969.

Precaución: Estas citas no son 100% exactas.