Cita APA (7th ed.)

Smith, K. J. (2001). The nature of mathematics (9th ed.). Brooks/Cole.

Cita Chicago (17th ed.)

Smith, Karl J. The Nature of Mathematics. 9th ed. Australia, Pacific Grove, CA: Brooks/Cole, 2001.

Cita MLA (9th ed.)

Smith, Karl J. The Nature of Mathematics. 9th ed. Brooks/Cole, 2001.