Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.