Inventions illustrées.
Wedi'i Gadw mewn:
| OCLC: | 10271022 |
|---|---|
| Iaith: | French |
| Cyhoeddwyd: |
Paris.
|
| Fformat: | Cyfresol Note that CRL will digitize material from the collection when copyright allows. |
| Disgrifiad Corfforoll: | v. ill. |
|---|---|
| Publication Frequency: | Every 10 days. |