Vance, E. P. (1973). Modern algebra and trigonometry (Third edition.). National Book Store.
Citace podle Chicago (17th ed.)Vance, Elbridge P. Modern Algebra and Trigonometry. Third edition. Manila: National Book Store, 1973.
Citace podle MLA (9th ed.)Vance, Elbridge P. Modern Algebra and Trigonometry. Third edition. National Book Store, 1973.
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