APA (7th ed.) Citation

Lial, M. L., Hornsby, J., & Schneider, D. I. (1998). Trigonometry (6th ed.). Addison-Wesley.

Chicago Style (17th ed.) Citation

Lial, Margaret L., John Hornsby, and David I. Schneider. Trigonometry. 6th ed. Reading, Mass: Addison-Wesley, 1998.

MLA (9th ed.) Citation

Lial, Margaret L., et al. Trigonometry. 6th ed. Addison-Wesley, 1998.