| وصف المادة: | v.1: Theory and practice of soap making v.2: The manufacture of special soaps and detergent compositions |
|---|---|
| وصف مادي: | 2 v |
| وصف المادة: | v.1: Theory and practice of soap making v.2: The manufacture of special soaps and detergent compositions |
|---|---|
| وصف مادي: | 2 v |