Related Clues:
- Multivolume ref.
- Ref. tome
- Brit. reference work
- Brit word bk.
- 'The Professor and the Madman' topic, for short
- Lexicon with many citations: Abbr.
- Ref. source
- Twenty-vol. reference
- Voluminous ref. work
- 'The Professor and the Madman' subj.
- 20-vol. reference work
- U.K. ref. bk.
- Desk ref. book
- Brit. ref. bk.
- Brit. reference set