APA (7e ed.) Bronvermelding

Lial, M. L., Hornsby, J., Schneider, D. I., & Daniels, C. (2014). Trigonometry (Tenth edition.). Pearson Education.

Chicago (17e ed.) Bronvermelding

Lial, Margaret L., John Hornsby, David I. Schneider, en Callie Daniels. Trigonometry. Tenth edition. Singapore: Pearson Education, 2014.

MLA (9e ed.) Bronvermelding

Lial, Margaret L., et al. Trigonometry. Tenth edition. Pearson Education, 2014.