APA Edition Citation

Zill, D. G., & Dewar, J. M. (1990). Trigonometry / Dennis G. Zill, Jacqueline M. Dewar (2nd ed.). McGraw-Hill.

Chicago Edition Citation

Zill, Dennis G., and Jacqueline M. Dewar. Trigonometry / Dennis G. Zill, Jacqueline M. Dewar. 2nd ed. London: McGraw-Hill, 1990.

MLA Edition Citation

Zill, Dennis G., and Jacqueline M. Dewar. Trigonometry / Dennis G. Zill, Jacqueline M. Dewar. 2nd ed. McGraw-Hill, 1990.