APA Edition Citation

Hall, H. S., & Knight, S. R. (1962). Elementary trigonometry (4th ed.).

Chicago Edition Citation

Hall, H. S., and S. R. Knight. Elementary Trigonometry. 4th ed. 1962.

MLA Edition Citation

Hall, H. S., and S. R. Knight. Elementary Trigonometry. 4th ed. 1962.

Warning: These citations may not always be 100% accurate.