World famous scientists and inventors supplementary for el-hi students
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Argitaratua: |
Quezon City
Century Pub.
c1993.
|
| Gaiak: |
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Argitaratua: |
Quezon City
Century Pub.
c1993.
|
| Gaiak: |