768 - Citation and Preference Order Instructions (R)
MARC 21 Classification - Concise
2007
This is an ARCHIVED VERSION of the
2007 electronic edition of the MARC 21 Concise
Formats. Please see loc.gov/marc/concise/
for the most up-to-date version of the electronic MARC 21
Concise Formats.
Note or table with instructions about the order in which
elements are to be applied in synthesizing a classification
number or instructions about preference for the classification
of different characteristics of a topic.
Indicators
First - Type of instruction
0 - Citation and preference order note
1 - Table of preference
Second - Undefined
# - Undefined
Subfield Codes
$a - Classification number-Single number or beginning number
of span (R)
$c - Classification number-Ending number of span (R)
$e - Example class number (R)
$i - Explanatory text (R)
$j - Caption (R)
Caption for the immediately following classification number
in a table of preference. This caption usually matches the
caption in field 153 (Classification Number) for that
classification number.
$n - Negative example class number (R)
Example of the incorrect classification number for the
topic used to illustrate the citation and preference order
instruction.
$t - Topic used as example of citation and preference order
instruction (R)
$x - Exception to table of preference (R)
$z - Table identification-Table number (R)
$8 - Field link and sequence number (NR)
Examples
|
|
|
|
|
|
|
|
|
|
|
768 |
0#$81.1$iGive
priority in notation to the continent, country, locality
emphasized. If emphasis is equal, give priority to the
one coming first in Table 2 |
|
|
|
|
|
|
|
|
|
|
|
768 |
0#$iObserve table of
preference under$a800 |
|
|
|
|
|
|
|
|
|
|
|
768 |
0#$iUnless other
instructions are given, class a subject with aspects in
two or more subdivisions
of$a641.563$iin the
number coming first,
e.g.,$tlow-carbohydrate, low-calorie
cooking for persons with
diabetes$e641.56314$i(not
$n641.5635$ior$n
641.5638) |
|
|
|
|
|
|
|
|
|
|
|
768 |
1#$81.3$jLabor
force by personal
characteristics$a331.3$c331.6 |
|
|
|
|
|
|
|
|
|
|
|
768 |
1#$81.7$jLabor
by industry and
occupation$a331.7$x(except
$a331.702) |
|
|
|
|
|
|
|
|
|
|
|
768 |
1#$81.1$iUnless
other instructions are given, observe the following table
of preference, e.g.,$tlanguage and
communication in education and
research$z1$e07$i(not
$z1$n014): |
|
768 |
1#$81.2$jSpecial
topics$z1$a04 |
|
768 |
1#$81.7$jManagement
$z1$a068 |
|
768 |
1#$81.16$jTreatment
by specific continents, countries, localities;
extraterrestrial
worlds$z1$a093$c099.... |
The Library of
Congress >> Librarians, Archivists >> Standards >>
MARC