Soap—Its Origin and Manufacture
| Autor: | Levitt, Benjamin |
|---|---|
| Zdroj: | The Military Engineer, 1931 Nov 01. 23(132), 571-572. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
|
| Autor: | Levitt, Benjamin |
|---|---|
| Zdroj: | The Military Engineer, 1931 Nov 01. 23(132), 571-572. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
|