Mathematics teaching aids for a stronger America, prepared for the Illinois Curriculum Program, Aviation Education Project
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Springfield
s.n.
1955.
|
| Cyfres: | Illinois Curriculum Program. Aviation Educatuion Project. Bulletin no. 22, part B
|
| Pynciau: |