Mathematics teaching aids for a stronger America, prepared for the Illinois Curriculum Program, Aviation Education Project
| Главный автор: | |
|---|---|
| Формат: | |
| Язык: | English |
| Опубликовано: |
Springfield
s.n.
1955.
|
| Серии: | Illinois Curriculum Program. Aviation Educatuion Project. Bulletin no. 22, part B
|
| Предметы: |