National Council of Teachers of Mathematics. (1953). Guidance pamphlet in mathematics for high school students (Rev.). s.n.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Council of Teachers of Mathematics. Guidance Pamphlet in Mathematics for High School Students. Rev. Washington: s.n, 1953.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNational Council of Teachers of Mathematics. Guidance Pamphlet in Mathematics for High School Students. Rev. s.n, 1953.
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