Sullivan, M. (2007). Precalculus concepts through functions a right triangle approach to trigonometry. United States: Pearson Educación.
Chicago Style CitationSullivan, Michael. Precalculus Concepts Through Functions a Right Triangle Approach to Trigonometry. United States: Pearson Educación, 2007.
MLA CitationSullivan, Michael. Precalculus Concepts Through Functions a Right Triangle Approach to Trigonometry. United States: Pearson Educación, 2007.
Warning: These citations may not always be 100% accurate.