RDA 4.2

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RDA 4.2: 250 field (Edition)


Edition statement

This step will bring abbreviations commonly used in the Edition Statement (250) and the Cartographic Mathematical Data (255) fields in line with RDA practices a much as possible by machine manipulation. By using lists that can be updated and expanded as needed it’s possible to modify the changes to either of these fields to fit your needs.

Abbreviations spelled out in 250 fields include numeric designations (1st to first, 3d to third, etc.), ed. to editor, rev. to revised, etc.

This table lists some abbreviations that will be expanded in 250 $a (edition statement):

Abbreviated Expanded
1st First
2nd Second
3rd Third
4th Fourth
5th Fifth
6th Sixth
7th Seventh
8th Eigth
9th Ninth
10th Tenth
ed. edition
rev. revised
 original field:
    250 $a 3rd rev. ed.
 updated field:
    250 $a Third revised edition.

Abbreviations to be spelled out in 255 fields include RA to Right ascension, Decl. to Declination, eq. to quinox, hour to hr., and ca. changed to approximately and brackets removed.

 original field:
    255 $c Scale [ca. 1:90,000].
 updated field:
    255 $c Scale approximately 1:90,000.
 original field:
    255 $c (RA 16 hr./Decl. -23° ; eq. 1950).
 updated field:
    255 $c (Right ascension 16 hr./Declination -23° ; equinox 1950).

Note: No changes will be made to 255 $b Statement of Projection as it is a transcribed field.


Expand all abbreviations in 25X fields.


4.1 - 4.2 - 4.3 - 4.4 - 4.5 - 4.6 - 4.7
1.0 - 2.0 - 3.0 - 4.0 - 5.0 - 6.0