Zulauf, A. (1969). The logical and set-theoretical foundations of mathematics. Oliver and Boyd.
Chicago-viite (17. p.)Zulauf, Achim. The Logical and Set-theoretical Foundations of Mathematics. Edinburgh: Oliver and Boyd, 1969.
MLA-viite (9. p.)Zulauf, Achim. The Logical and Set-theoretical Foundations of Mathematics. Oliver and Boyd, 1969.
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