Guide to reference books.
Wedi'i Gadw mewn:
| OCLC: | 581486 |
|---|---|
| Prif Awdur: | |
| Awdur Corfforaethol: | |
| Awduron Eraill: | , |
| Iaith: | English |
| Cyhoeddwyd: |
Chicago,
American library association,
1929.
|
| Rhifyn: | 5th ed. |
| Pynciau: | |
| Fformat: | Monograph Note that CRL will digitize material from the collection when copyright allows. |