Wentworth - Plane Trigonometry - New paperback or softback - 21 - X555z

Simpson - Trigonometry Plane And Spherical - New paperback or softbac - X555z

Murray - Elements of Plane Trigonometry - New paperback or softback - - X555z

Wells - New Plane and Spherical Trigonometry - New paperback or softba - X555z

Day - A Treatise of Plane Trigonometry - New paperback or softback - 0 - X555z

Dresden - Plane Trigonometry - New paperback or softback - 27 - X555z

G.A. Wentworth - Plane Geometry - New paperback or softback - 21 - X555z

Dresden - Plane Trigonometry - New paperback or softback - 65 - X555z