Information sources in science and technology
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Englewood, Colo.
Libraries Unlimited
1994
|
| Rhifyn: | 2nd ed. |
| Cyfres: | Library science text series
|
| Pynciau: |