Vance, E. P. (1962). Modern algebra and trigonometry = Algebra y trigonometría modernas. Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)Vance, Elbridge P. Modern Algebra and Trigonometry = Algebra Y Trigonometría Modernas. Addison-Wesley, 1962.
Lua MLA (9ú heag.)Vance, Elbridge P. Modern Algebra and Trigonometry = Algebra Y Trigonometría Modernas. Addison-Wesley, 1962.
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