Much ado about canceling
| Autor: | Levine, Deborah R. |
|---|---|
| Zdroj: | The Mathematics Teacher, 1987 Feb 01. 80(2), 84-84. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
|
| Autor: | Levine, Deborah R. |
|---|---|
| Zdroj: | The Mathematics Teacher, 1987 Feb 01. 80(2), 84-84. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
|