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.
Emerson, William,1701-1782.
London : printed for W. Innys,
1749.
Preface signed: W. Emerson.
ESTC
England London