How to secure copyright the law of literary property
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York
Oceana Publications
1957
|
| Rhifyn: | Rev. [2nd] ed. |
| Cyfres: | Legal almanac series
21 |
| Pynciau: |