050 | Serial publications. Periodicals 050.1/.4 ≅ 070.1/.4 Scope Note: Their function, business and editorial management |
| 050.8 | Yearbooks. Directories, address books Scope Note: Class here works about yearbooks, directories and address books. For yearbooks, etc. themselves see (058) |
| 050.9 | Almanacs. Calendars Scope Note: Class here works about almanacs and calendars. For almanacs and calendars themselves see (059) ⇨ 006.95 Chronology. The calendar |