APA (7th ed.) Citation

Smith, K. J. (1987). The nature of mathematics (5th ed.). Brooks/Cole Pub. Co..

Chicago Style (17th ed.) Citation

Smith, Karl J. The Nature of Mathematics. 5th ed. Monterey, Calif.: Brooks/Cole Pub. Co., 1987.

MLA (9th ed.) Citation

Smith, Karl J. The Nature of Mathematics. 5th ed. Brooks/Cole Pub. Co., 1987.