APA (7th ed.) Citation

Olney, E. (1880). Elements of trigonometry, plane and spherical. Sheldon & Company.

Chicago Style (17th ed.) Citation

Olney, Edward. Elements of Trigonometry, Plane and Spherical. New York: Sheldon & Company, 1880.

MLA (8th ed.) Citation

Olney, Edward. Elements of Trigonometry, Plane and Spherical. Sheldon & Company, 1880.