The elements of trigonometry. Containing, the properties, relations, and calculations of sines, tangents, secants, &c. The doctrine of the sphere, and the principles of plain and spherical trigonometry. All plainly and clearly demonstrated ...

MLA

Emerson, William and Founders Collection (University of Pennsylvania). The elements of trigonometry. Containing, the properties, relations, and calculations of sines, tangents, secants, &c. The doctrine of the sphere, and the principles of plain and spherical trigonometry. All plainly and clearly demonstrated ... London : W. Innys, 1749.

APA

Emerson, W. & Founders Collection (University of Pennsylvania). (1749). The elements of trigonometry. Containing, the properties, relations, and calculations of sines, tangents, secants, &c. The doctrine of the sphere, and the principles of plain and spherical trigonometry. All plainly and clearly demonstrated ... London : W. Innys.

Chicago

Emerson, William and Founders Collection (University of Pennsylvania). The elements of trigonometry. Containing, the properties, relations, and calculations of sines, tangents, secants, &c. The doctrine of the sphere, and the principles of plain and spherical trigonometry. All plainly and clearly demonstrated ... London : W. Innys, 1749.