APA (7th ed.) Citation

Johnston, C. (1978). Plane trigonometry a new approach. Prentice-Hall.

Chicago Style (17th ed.) Citation

Johnston, C.L. Plane Trigonometry a New Approach. Prentice-Hall, 1978.

MLA (8th ed.) Citation

Johnston, C.L. Plane Trigonometry a New Approach. Prentice-Hall, 1978.

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