| Answer | Crossword Clue |
|---|---|
| OEDS | Brit. reference sets |
| ENCYS | Sets of reference books: Abbr. |
| OED | Brit. reference |
| OED | Brit. reference work |
| OED | Brit. reference staple |
| OED | Multivolume Brit. reference |
| OED | Brit. word reference |
| OEDS | Brit. reference works |
| OED | Brit. reference tome |
| DNB | Brit. reference tome |
| OED | Brit. reference set |
| OED | Massive Brit. reference |
| OED | Brit. reference bk. |
| OED | Heavy Brit. reference set |
