Cita APA (7a ed.)

Wentworth, G., & Smith, D. E. (1938). Plane and Spherical Trigonometry and Tables. Ginn & Co.

Cita Chicago Style (17a ed.)

Wentworth, George, y David Eugene Smith. Plane and Spherical Trigonometry and Tables. Boston: Ginn & Co, 1938.

Cita MLA (8a ed.)

Wentworth, George, y David Eugene Smith. Plane and Spherical Trigonometry and Tables. Ginn & Co, 1938.