APA (7th ed.) Citation

Morrill, W. K. (1946). Plane trigonometry (Revised ed.). Rinehart.

Chicago Style (17th ed.) Citation

Morrill, William Kelso. Plane Trigonometry. Revised ed. New York: Rinehart, 1946.

MLA (9th ed.) Citation

Morrill, William Kelso. Plane Trigonometry. Revised ed. Rinehart, 1946.

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