APA (7th ed.) Citation

Lial, M. L. (2009). Trigonometry (9. ed.). Pearson Addison-Wesley.

Chicago Style (17th ed.) Citation

Lial, Margaret L. Trigonometry. 9. ed. Boston ; Munich [u.a.]: Pearson Addison-Wesley, 2009.

MLA (9th ed.) Citation

Lial, Margaret L. Trigonometry. 9. ed. Pearson Addison-Wesley, 2009.