683 - Application Instruction Note (R)
MARC 21 Classification - Concise
2008
Instructions for applying tables, subarrangements, or additions to classification
numbers.
Indicators
First - Type of note
0 - General application
1 - Special arrangement of classification topics
2 - Optional classification
Second - Undefined
# - Undefined
Subfield Codes
$a - Classification number-single number or beginning number of span (R)
Used to amplify the explanatory text of the note.
$c - Classification number-ending number of span (R)
$i - Explanatory text (R)
Explains the scope of the classification number. This subfield is repeated when
other subfields intervene in the explanatory text.
$p - Corresponding classification field (R)
For optional instruction notes (first indicator is coded 2), this subfield
contains the tag of the field in which the data would appear if it were not an
option. This subfield allows for an easier conversion from an optional instruction
to the standard instruction. If it cannot be determined which field the data would
fall into if it were not part of an optional instruction, this subfield may be
omitted. If the data is a reference and can be recorded in field 253 (Complex See
Reference) or field 453 (Invalid Number Tracing), the choice of which tag to use
is made according to how the text reads, not how it might read if it were made
into a tracing.
$t - Topic (R)
$y - Table sequence number for internal subarrangement or add table (R)
$z - Table identification (R)
$5 - Institution to which field applies (R)
$8 - Field link and sequence number (NR)
Examples
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| 683 |
0#$iIn building numbers, do not add by use of 0 or 1
(alone or in combination) more than twice, e.g., history of rock protest
songs$a782.421661592$i(not$a782.42166159209)
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| 683 |
0#$iUnder each century is provided a “General” number
followed by a number for “Special aspects or movements.” The latter is
used for historical movements, etc. that are considered
international.
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| 683 |
1#$iArrange alphabetically by name of
artist
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| 683 |
2#$iOptional number and subdivisions; prefer$a780$c788
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| 683 |
2#$81.2$i(Option: Class Black Hawk War in$a970.5)$p253
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| 683 |
2#$i(Option: For any group of languages, add notation$z4$a04$ito the base number and then add notation$z4$a01$c8$ifrom Table 4, e.g., grammar of Celtic languages$a491.6045)$p761
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| 683 |
1#$iIndividual jurists and titles are interfiled and
arranged alphabetically
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| 683 |
2#$i(If Option A is used with either Option B or C, class
here comprehensive works on traditions of music)$p680[If this number were not optional, the note would be in field 680 (Scope
Note).]
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| 683 |
0#$iIn building numbers, do not add by use of 0 or 1 (alone
or in combination) more than twice, e.g., $thistory of rock protest songs$a782.421661592$i(not$a782.42166159209)
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| 683 |
0#$ifor Russia in Asia as a whole, use the numbers provided
for Central Asia: for Siberia use local numbers of the R.S.F.S.R., e.g.$zN1$a56$ietc.
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| 683 |
2#$i(Option: Class Egypt in$z2$a62;$iAlexandria in$z2$a621;$iGiza, Memphis in$z2$a622;$iAbydos, Karnak, Luxor, Thebes in$z2$a623)$p253 |