APA (7th ed.) Citation

Brown, J. R. (1999). Philosophy of mathematics: an introduction to: The world of proofs and pictures. Routledge.

Chicago Style (17th ed.) Citation

Brown, James Robert. Philosophy of Mathematics: An Introduction to: The World of Proofs and Pictures. London: Routledge, 1999.

MLA (9th ed.) Citation

Brown, James Robert. Philosophy of Mathematics: An Introduction to: The World of Proofs and Pictures. Routledge, 1999.