13 books
Elementary algebra
Intermediate Algebra (Classic Reprint)
Elementary Algebra (Classic Reprint)
Solid Geometry with Problems and Applications (Revised edition)
First Principles of Algebra
Plane Trigonometry and Applications
Solid Geometry with Problems and Applications
Plane and Solid Geometry with Problems and Applications (Classic Reprint)
Plane Geometry with Problems and Applications (Classic Reprint)
Solid Geometry
High School Algebra
High school algebra elementary course
Tibet; A Geographical, Ethnographical, and Historical Sketch, Derived from Chinese Sources Volume 1