Where to find more a handbook to reference service.
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr | 
| Iaith: | English | 
| Cyhoeddwyd: | Metuchen, N.J.
          Scarecrow Press
    
        1977. | 
| Cyfres: | Hillard, James M., 1920-        Where to find what. | 
| Pynciau: |