APA-čujuhus (7. p.)
Black, M. (1965). The Nature of Mathematics (5a.ed.). Routeledge and Kegan Paul.
Chicago-čujuhus (17. p.)
Black, Max. The Nature of Mathematics. 5a.ed. Londres: Routeledge and Kegan Paul, 1965.
MLA-čujuhus (9. p.)
Black, Max. The Nature of Mathematics. 5a.ed. Routeledge and Kegan Paul, 1965.
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