Citazione Stile APA (7a Edizione)

Smith, K. J. (2017). The nature of mathematics (Thirteenth edition.). Cengage Learning.

Citazione stile Chigago Style (17a edizione)

Smith, Karl J. The Nature of Mathematics. Thirteenth edition. Boston, MA: Cengage Learning, 2017.

Citatione MLA (9a ed.)

Smith, Karl J. The Nature of Mathematics. Thirteenth edition. Cengage Learning, 2017.