Cita APA (7th ed.)
Wentworth, G. A., & Smith, D. E. (1943). Plane and spherical trigonometry and tables. Ginn and Company.
Cita Chicago (17th ed.)
Wentworth, G. A., i David Eugene Smith. Plane and Spherical Trigonometry and Tables. Boston: Ginn and Company, 1943.
Cita MLA (9th ed.)
Wentworth, G. A., i David Eugene Smith. Plane and Spherical Trigonometry and Tables. Ginn and Company, 1943.
Atenció: Aquestes cites poden no estar 100% correctes.