APA-čujuhus (7. p.)
Smith, K. J. (1987). The nature of mathematics (5th ed.). Brooks/Cole Pub. Co..
Chicago-čujuhus (17. p.)
Smith, Karl J. The Nature of Mathematics. 5th ed. Monterey, Calif.: Brooks/Cole Pub. Co., 1987.
MLA-čujuhus (9. p.)
Smith, Karl J. The Nature of Mathematics. 5th ed. Brooks/Cole Pub. Co., 1987.
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