70 books
Shorter Course in Algebra (Classic Reprint)
The First Steps in Algebra (Classic Reprint)
Wentworth and Hill's Examination Manuals, Vol. 1
Wentworth and Hill's Exercise Manuals
Solid Geometry (Classic Reprint)
New Plane and Spherical Trigonometry, Surveying, and Navigation (Classic Reprint)
Aritmetica Elemental (Classic Reprint)
Syllabus of Geometry
Wentworth and Hill's Exercise Manuals, Vol. 2
Solid Geometry, Volumes 6-9
Textbook of Geometry
First Steps in Number
An Elementary Arithmetic
Elements of Algebra
A Higher Algebra
An Advanced Arithmetic
New Plane and Spherical Trigonometry, Surveying and Navigation, Teachers' Edition
The First Steps in Algebra
A High School Arithmetic (Wentworth & Hill's Practical Arithmetic). - Scholar's Choice Edition
Solid Geometry - Scholar's Choice Edition
Plane and Spherical Trigonometry and Surveying - Scholar's Choice Edition
Plane and Solid Geometry - Scholar's Choice Edition
Wentworth's Primary Arithmetic - Scholar's Choice Edition
Plane and Spherical Trigonometry - Scholar's Choice Edition