Barker, S. F. (1964). Philosophy of Mathematics. Prentice-Hall.
Cita Chicago Style (17a ed.)Barker, Stephen Francis. Philosophy of Mathematics. London: Prentice-Hall, 1964.
Cita MLA (8a ed.)Barker, Stephen Francis. Philosophy of Mathematics. Prentice-Hall, 1964.
Precaución: Estas citas no son 100% exactas.