Dressler, I., & Rich, B. (1972). Algebra two and trigonometry: A modern intergrated course. Amsco school.
Lua i Stíl Chicago (17ú heag.)Dressler, Isidore, agus Barnett Rich. Algebra Two and Trigonometry: A Modern Intergrated Course. New York: Amsco school, 1972.
Lua MLA (9ú heag.)Dressler, Isidore, agus Barnett Rich. Algebra Two and Trigonometry: A Modern Intergrated Course. Amsco school, 1972.
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