APA (7th ed.) Citation

Wentworth, G. A., & Hill, G. A. (1882). Plane and spherical trigonometry.: By G.A. Wentworth. Ginn, Heath & co..

Chicago Style (17th ed.) Citation

Wentworth, G. A., and G. A. Hill. Plane and Spherical Trigonometry.: By G.A. Wentworth. Boston: Ginn, Heath & co., 1882.

MLA (8th ed.) Citation

Wentworth, G. A., and G. A. Hill. Plane and Spherical Trigonometry.: By G.A. Wentworth. Ginn, Heath & co., 1882.

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