III · Science
Math at hand
Subjects
Mathematics · Problems, exercises · Handbooks, manuals · Study and teaching (Elementary) · Mathematics, problems, exercises, etc. · Mathematics, study and teaching (elementary)
Language
ENG




![Cover of [William Wheeler Hubbell, authorized to apply for patents.] by United States. Congress. Senate. Committee on Patents](https://covers.openlibrary.org/b/id/10200621-M.jpg)
