Cita APA (7a ed.)
Smith, K. J. (1991). The nature of mathematics (6th ed.). Brooks/Cole Pub. Co..
Cita Chicago Style (17a ed.)
Smith, Karl J. The Nature of Mathematics. 6th ed. Pacific Grove, Calif.: Brooks/Cole Pub. Co., 1991.
Cita MLA (9a ed.)
Smith, Karl J. The Nature of Mathematics. 6th ed. Brooks/Cole Pub. Co., 1991.
Precaución: Estas citas no son 100% exactas.