Plane Trigonometry, Vol. 1: An Elementary Course (Classic Reprint)

Plane and Spherical Trigonometry, Vol. 1 (Classic Reprint)

An Elementary Treatise on Geometry, Vol. 1 (Classic Reprint)

An Elementary Course of Mathematics, Vol. 1 (Classic Reprint)

Plane Trigonometry, Vol. 2 (Classic Reprint)

An Elementary Treatise on Plane Trigonometry (Classic Reprint)