Vannatta, G. D. (1961). Introductory mathematics. Charles & Merrill books Inc..
Lua i Stíl Chicago (17ú heag.)Vannatta, Glen D. Introductory Mathematics. Ohio: Charles & Merrill books Inc., 1961.
Lua MLA (9ú heag.)Vannatta, Glen D. Introductory Mathematics. Charles & Merrill books Inc., 1961.
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