Davis, H. A. a. C. (1933). Brief course in plane and sperical trigonometry. American Book.
Style de citation Chicago (17e éd.)Davis, H. A. and Chambers. Brief Course in Plane and Sperical Trigonometry. New ork: American Book, 1933.
Style de citation MLA (9e éd.)Davis, H. A. and Chambers. Brief Course in Plane and Sperical Trigonometry. American Book, 1933.
Attention : ces citations peuvent ne pas être correctes à 100%.