National Council of Teachers of Mathematics. (1953). Guidance pamphlet in mathematics for high school students (Rev.). s.n.
Čikaški stil citiranja (17. izdanje)National Council of Teachers of Mathematics. Guidance Pamphlet in Mathematics for High School Students. Rev. Washington: s.n, 1953.
MLA način citiranja (9. izdanje)National Council of Teachers of Mathematics. Guidance Pamphlet in Mathematics for High School Students. Rev. s.n, 1953.
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