The world book encyclopedia. volume 22, Research guide, Index /
Wedi'i Gadw mewn:
| Awduron Eraill: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Chicago :
Field Enterprises Educational Corporation,
1974
|
| Pynciau: |
| Disgrifiad Corfforoll: | 26 v. : ill. ; 25 cm. |
|---|---|
| ISBN: | 0-7166-0074-9 |