Dyfyniad APA

Sullivan, M. (2012). Algebra and trigonometry (9th ed.). Boston.

Dyfyniad Arddull Chicago

Sullivan, Michael. Algebra and Trigonometry. 9th ed. Prentice Hall: Boston, 2012.

Dyfyniad MLA

Sullivan, Michael. Algebra and Trigonometry. 9th ed. Boston, 2012.

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