> -----Original Message----- > > Here is a more detailed list of AACR2/RDA differences. > > --------------------------------------------------------------------- > 110 RDA change: Spell our "Dept." (This was in AACR2 but not > applied.) Remove |k uniform title for treaty entries. > Not clear what the second sentence means. Uniform titles for treaties entered under a jurisdiction have been in subfield $t of 110 in authority records and of 710 in bib records, or in 240 of bib records, for 30 years.
> 250 RDA change: transcribe rather than abbreviate, e.g., 250 |aSecond > edition. Only use abbreviations if in the item. This result in the > unacceptable to some double period after an abbreviation, e.g., "ed.." > The double punctuation has nothing to do with RDA. It was introduced to the ISBD to accommodate systems that supply punctuation between areas by machine, a concept that is still foreign to most of the MARC 21 world. The idea was that the system would not have to consider whether an area already ended with a full stop, as from an abbreviation, before adding ". -- " before the next area of an ISBD description. There is no reason or logic for catalogers to manually supply double punctuation. > > Bracket adjacent element in the same field, e.g., 260 |a[S.l. > :|b[s.n.],|c[2010?]. > RDA does not use these abbreviations. ----------------------------------------------------------- John Hostage Authorities and Database Integrity Librarian Langdell Hall host...@law.harvard.edu Harvard Law School Library +(1)(617) 495-3974 (voice) Cambridge, MA 02138 +(1)(617) 496-4409 (fax) http://www.law.harvard.edu/library/
