APA (7th ed.) Citation

Jourdain, P. E. B. (1913). The nature of mathematics. Jack [u.a.].

Chicago Style (17th ed.) Citation

Jourdain, Philip E. B. The Nature of Mathematics. London [u.a.]: Jack [u.a.], 1913.

MLA (9th ed.) Citation

Jourdain, Philip E. B. The Nature of Mathematics. Jack [u.a.], 1913.