Foster, A. G. (1992). Merrill algebra 2 with trigonometry: Applications and connections. Glencoe.
Lua i Stíl Chicago (17ú heag.)Foster, Alan G. Merrill Algebra 2 with Trigonometry: Applications and Connections. Lake Forest, Ill.: Glencoe, 1992.
Lua MLA (8ú heag.)Foster, Alan G. Merrill Algebra 2 with Trigonometry: Applications and Connections. Glencoe, 1992.
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