Cita APA (7a ed.)
Bell, E. T. (1937). Men of Mathematics (1a.ed.). Penguin books.
Cita Chicago Style (17a ed.)
Bell, E. T. Men of Mathematics. 1a.ed. Middlesex: Penguin books, 1937.
Cita MLA (9a ed.)
Bell, E. T. Men of Mathematics. 1a.ed. Penguin books, 1937.
Precaución: Estas citas no son 100% exactas.