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. 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. The third edition, with additions and corrections. London : Printed for C. Nourse in the Strand, M.DCC.LXXXVIII. [1788]

APA

Emerson, W. (1788). 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. The third edition, with additions and corrections. London : Printed for C. Nourse in the Strand.

Chicago

Emerson, William. 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. The third edition, with additions and corrections. London : Printed for C. Nourse in the Strand, M.DCC.LXXXVIII. [1788]