REF000000 - General
REF001000 - Almanacs
REF002000 - Atlases & Gazetteers
- - -
REF004000 - Bibliographies & Indexes
- - -
REF006000 - Catalogs
REF007000 - Curiosities & Wonders
REF008000 - Dictionaries
REF009000 - Directories
REF010000 - Encyclopedias
REF011000 - Etiquette
- - -
REF013000 - Genealogy & Heraldry
- - -
REF015000 - Personal & Practical Guides
- - -
REF018000 - Questions & Answers
REF019000 - Quotations
REF020000 - Research
- - -
REF022000 - Thesauri
REF023000 - Trivia
REF024000 - Weddings
REF025000 - Word Lists
REF026000 - Writing Skills
REF027000 - Yearbooks & Annuals
REF028000 - Handbooks & Manuals
- - -
REF030000 - Consumer Guides


Hints:

Use subjects in this section for works of a general nature or for works about the topics found in this section (note that there is a subheading "Reference" in most other sections and some sections also have a subheading "Dictionaries & Terminology").

Subjects in this section may be used with those in other sections for reference works on topics not found in this section, but it is recommended that topical subjects be assigned first: for example, a bibliography of medical books could be assigned "MEDICAL / Reference" and "REFERENCE / Bibliographies & Indexes"; a bibliography of books about pediatrics could be assigned "MEDICAL / Pediatrics", "MEDICAL / Reference" and "REFERENCE / Bibliographies & Indexes".