Library of Congress classification schedules combined with additions and changes through 1987 Class Z Bibliography and Library Science
| Údar corparáideach: | |
|---|---|
| Formáid: | LEABHAR |
| Teanga: | Béarla |
| Foilsithe / Cruthaithe: |
Detroit
Gale
c1988.
|
| Ábhair: |