| COMARC/B | February | 2001 |
This field contains a class number applied to the item being recorded according to the Dewey Decimal Classification.
The number of the edition used from which the number in subfield a is taken. An "a" is added to the number to indicate abridged edition (see example 6).
The language in coded form of the edition from which the number in subfield a is taken.
The number is entered in subfield a from schedules used by the agency preparing the record. The number may include prime marks (/), which indicate internationally agreed points at which the number may be truncated. The number should not include extensions used solely to assign a book-mark to an individual item.
Subfield z should be used only if the translated version contains differences from the original, e.g. when parts of the schedule have been rewritten to cover local requirements.
676 ⊔⊔ a943.0840924 v19 (The class number for a book entitled "Kaiser Wilhelm II : new interpretations", a collection of biographical essays on Wilhelm II, Emperor of Germany, 1890-1917. The item is classified according to the nineteenth edition of the schedules.) 676 ⊔⊔ a823.912 v19 (The class number for a book entitled "Paddington at the station", a children's storybook. The item is classified according to the nineteenth edition of the schedules.) 676 ⊔⊔ a823/.912 v19 (The class number for the same work where the agency uses prime marks.) 676 ⊔⊔ a001.64/092/2 v19 (The class number for a book entitled "Computer pioneers".) 676 ⊔⊔ aA823/.2 v19 (The class number for a book of Australian fiction of the period 1890-1945. The use of A823.2 to distinguish it from 823.2 (which indicates British fiction of the period 1400-1558) is allowed by the schedules.) 676 ⊔⊔ a914.3 v11a (The class number taken from the eleventh abridged edition.)