Copyright basics.
Wedi'i Gadw mewn:
| OCLC: | 13180324 |
|---|---|
| Awdur Corfforaethol: | |
| Iaith: | English |
| Cyhoeddwyd: |
Washington, D.C. :
Copyright Office, Library of Congress,
1985.
|
| Cyfres: | Circular (Library of Congress. Copyright Office) ;
R1. |
| Pynciau: | |
| Fformat: | Dogfen y Llywodraeth Monograph Note that CRL will digitize material from the collection when copyright allows. |