Cita APA (7a ed.)

Davis, H. A. a. C. (1933). Brief course in plane and sperical trigonometry. American Book.

Cita Chicago Style (17a ed.)

Davis, H. A. and Chambers. Brief Course in Plane and Sperical Trigonometry. New ork: American Book, 1933.

Cita MLA (9a ed.)

Davis, H. A. and Chambers. Brief Course in Plane and Sperical Trigonometry. American Book, 1933.